Del Valle Regional Park

Plan access, camping, lake recreation, and the Ohlone Wilderness Trail from one evidence-backed view.

Updated 2026-10-28

At a glance

Park statusopen limited amenities
Book a campsite
Channel
online
Maximum advance weeks
12
Minimum advance hours
48
Campground gate
Closes
22:00
Opens
08:00
Swimming advisorycaution
Boat inspectionYes
Ohlone overnights
Channel
phone
Designated sites only
Yes
Minimum advance days
2
Required
Yes

Check before you go

Recheck required. Conditions below can change. Follow the linked official source before leaving.

Boat inspection

Yes

volatile input has no trip-date-bounded observation

Evidence and sources (3)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    EBRPD requires watercraft inspection at Contra Loma, Del Valle, Lake Chabot, Quarry Lakes, and Shadow Cliffs. Covered craft include boats, kayaks, canoes, sailboats, inflatable craft, and every form of floating board. Campers with watercraft must complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Cross lake boat quarantine

Duration days
30
Restricted destination
Lake Del Valle
Trigger lake
Contra Loma Reservoir

dated claim does not establish the condition on the trip date

Evidence and sources (2)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The current notice reports golden mussels at Contra Loma and states that a boat launched there is quarantined for 30 days from inspected lakes including Del Valle. All vessels should be cleaned, drained, and dried, and bands are honored only at their issuing lake.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Swimming advisory

caution

dated claim does not establish the condition on the trip date

Evidence and sources (4)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-east-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Park status

open limited amenities

dated claim does not establish the condition on the trip date

Evidence and sources (1)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    At retrieval, the park was open with limited amenities; the swim-beach food concession was closed until further notice, storm-damaged trails required caution, construction equipment or noise could be present during working hours, and the visitor center was open.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Trail condition

storm damage use caution

dated claim does not establish the condition on the trip date

Evidence and sources (1)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    At retrieval, the park was open with limited amenities; the swim-beach food concession was closed until further notice, storm-damaged trails required caution, construction equipment or noise could be present during working hours, and the visitor center was open.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Water availability

no water

dated claim does not establish the condition on the trip date

Evidence and sources (4)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-west-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Pretrip alert topics

volatile input has no trip-date-bounded observation

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page directs visitors to check current fire-danger restrictions and blue-green algae updates before travel, and warns that flooding can cause site or park closure and reservation cancellation with email or phone notice.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Live alert source

Use
pretrip recheck
Volatile
Yes

volatile input has no trip-date-bounded observation

Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The live district alerts and closures page is a volatile source for conditions that may affect park access, facilities, water recreation, fire restrictions, and closures.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

5 questions Wayproof cannot currently answer

What blue-green algae advisory applies for the planned trip date and beach?

What blue-green algae advisory applies for the planned trip date and beach?

The overview points to changing updates and does not state a current beach-specific status.

Open question. Linked evidence does not resolve this gap.

Published swimming facilities

Beaches
2
Lifeguards
during posted periods
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Pretrip alert topics

  • fire danger
  • blue green algae
  • flood closure
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page directs visitors to check current fire-danger restrictions and blue-green algae updates before travel, and warns that flooding can cause site or park closure and reservation cancellation with email or phone notice.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

What fire restrictions apply for the planned trip date?

What fire restrictions apply for the planned trip date?

The overview directs visitors to a changing fire-danger source.

Open question. Linked evidence does not resolve this gap.

Fire rules

Adult attendance required
Yes
Designated areas only
Yes
Extinguish before departure
Yes
Subject to current restrictions
Yes
Wood collection allowed
No
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Fire restrictions may apply. Fires are allowed only in designated areas, must use commercially purchased wood, processed logs, or cut lumber, must remain attended by an adult, and must be extinguished before departure. Collecting wood, smoking, and vaping are prohibited.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: Supports designated-area, attendance, extinguishing, and changing-restriction portions; it does not address wood collection.

    Sections 404-404.3 limit open fires to designated facilities, prohibit unattended fires, allow escalation during fire season, and prohibit smoking and vaping throughout the District.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2023-09-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 7

    References are not a confirmation of current availability.

Pretrip alert topics

  • fire danger
  • blue green algae
  • flood closure
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page directs visitors to check current fire-danger restrictions and blue-green algae updates before travel, and warns that flooding can cause site or park closure and reservation cancellation with email or phone notice.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Is the park or reserved site affected by flooding for the planned trip?

Is the park or reserved site affected by flooding for the planned trip?

Flood safety can cancel a reservation after booking.

Open question. Linked evidence does not resolve this gap.

Pretrip alert topics

  • fire danger
  • blue green algae
  • flood closure
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page directs visitors to check current fire-danger restrictions and blue-green algae updates before travel, and warns that flooding can cause site or park closure and reservation cancellation with email or phone notice.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Which published Del Valle closure schedule governs Cedar Camp and Punta Vaca?

Which published Del Valle closure schedule governs Cedar Camp and Punta Vaca?

The May 20, 2026 EBRPD sheet closes Cedar until further notice and Punta Vaca through April 30; the live ReserveAmerica listing shows both reopening March 31. Neither source explains the disagreement.

Open question. Linked evidence does not resolve this gap.

Published seasonal closures

Caballo loco
  • 11-01
  • 03-31
Cedar camp
until further notice
Hetch hetchy
  • 11-01
  • 03-31
Punta vaca
  • 11-01
  • 04-30
Venados
  • 11-01
  • 03-31
Wild turkey
  • 11-01
  • 03-31
Cabins
  • 01-01
  • 01-31
Family sites 111 150
  • 11-01
  • 04-30
Family sites 65 110
  • 11-01
  • 03-31
Subject to change without notice
Yes
Evidence and sources (1)

Claim effective interval: 2026-05-20 to No end bound

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    Updated 2026-05-20: cabins close Jan 1-31; Cedar is closed until further notice; Caballo Loco, Hetch Hetchy, Venados and Wild Turkey close Nov 1-Mar 31; family sites 65-110 close Nov 1-Mar 31; sites 111-150 and Punta Vaca close Nov 1-Apr 30. Dates may change without notice.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2026-05-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 1

    References are not a confirmation of current availability.

Published seasonal closures

Caballo loco
  • 11-01
  • 03-31
Cedar camp
  • 11-01
  • 03-31
Hetch hetchy
  • 11-01
  • 03-31
Punta vaca
  • 11-01
  • 03-31
Venados
  • 11-01
  • 03-31
Wild turkey
  • 11-01
  • 03-31
Cabins
  • 01-01
  • 01-31
Retrieved on
2026-09-20
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    Evidence notes: Undated live-page schedule captured on retrieval date; no effective year was printed for the recurring windows.

    At retrieval the live listing marked Cedar, Wild Turkey, Punta Vaca, Caballo Loco, Hetch Hetchy, and Venados closed November 1 through March 31 and cabins closed January 1 through January 31; this conflicts with the May 20, 2026 EBRPD closure sheet for Cedar and Punta Vaca.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    Wayproof live Chrome source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

    Recorded artifact references
    • Season Dates
    • Seasonal site closures

    References are not a confirmation of current availability.

Which activities are allowed or prohibited at each EBRPD algae advisory level?

Which activities are allowed or prohibited at each EBRPD algae advisory level?

This page gives general health guidance but does not define the operational rules for Caution versus Danger; the linked beach-conditions material is still needed.

Open question. Linked evidence does not resolve this gap.

Swimming advisory

caution
Evidence and sources (4)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-east-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Advisory fish guidance

Avoid unnecessary water contact
Yes
Cook thoroughly
Yes
Discard guts and liver
Yes
Wash fillet with safe water
Yes
Wash hands after wet contact
Yes
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-ebrpd-water-quality-program

  1. Evidence stance: supports · Evidence details

    During an algae advisory, EBRPD advises avoiding unnecessary water contact and washing hands after handling fish or wet equipment. Fish fillets should be washed with tap or bottled water, guts and liver discarded, and fish cooked thoroughly. Reservoir fish are tested annually; at retrieval the page reported no microcystin detected to date in fish flesh from District-managed waters.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Dog exposure risk

High susceptibility
Yes
Routes
  • drinking
  • swimming
  • wading
  • grooming fur or paws
  • eating dried shoreline algae
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-ebrpd-water-quality-program

  1. Evidence stance: supports · Evidence details

    Exposure to toxic algae by ingestion, inhalation, or skin contact can cause rashes, eye or skin irritation, allergic reactions, breathing difficulty or congestion, gastrointestinal illness, and in high exposures serious illness or death. Dogs face special risk from drinking, swimming, wading, grooming contaminated fur or paws, or eating dried shoreline algae.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Human exposure risk

Effects
  • rash
  • skin eye irritation
  • allergic reaction
  • breathing difficulty
  • congestion
  • gastrointestinal illness
  • serious illness
  • death
Routes
  • ingestion
  • inhalation
  • skin contact
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-ebrpd-water-quality-program

  1. Evidence stance: supports · Evidence details

    Exposure to toxic algae by ingestion, inhalation, or skin contact can cause rashes, eye or skin irritation, allergic reactions, breathing difficulty or congestion, gastrointestinal illness, and in high exposures serious illness or death. Dogs face special risk from drinking, swimming, wading, grooming contaminated fur or paws, or eating dried shoreline algae.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

1 dated/current inputs available

Published seasonal closures

Caballo loco
  • 11-01
  • 03-31
Cedar camp
until further notice
Hetch hetchy
  • 11-01
  • 03-31
Punta vaca
  • 11-01
  • 04-30
Venados
  • 11-01
  • 03-31
Wild turkey
  • 11-01
  • 03-31
Cabins
  • 01-01
  • 01-31
Family sites 111 150
  • 11-01
  • 04-30
Family sites 65 110
  • 11-01
  • 03-31
Subject to change without notice
Yes

claim is effective on the trip date

Evidence and sources (1)

Claim effective interval: 2026-05-20 to No end bound

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    Updated 2026-05-20: cabins close Jan 1-31; Cedar is closed until further notice; Caballo Loco, Hetch Hetchy, Venados and Wild Turkey close Nov 1-Mar 31; family sites 65-110 close Nov 1-Mar 31; sites 111-150 and Punta Vaca close Nov 1-Apr 30. Dates may change without notice.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2026-05-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 1

    References are not a confirmation of current availability.

Getting there and entering

Park status

Recorded for: Del Valle Regional Park

open limited amenities
Evidence and sources (1)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    At retrieval, the park was open with limited amenities; the swim-beach food concession was closed until further notice, storm-damaged trails required caution, construction equipment or noise could be present during working hours, and the visitor center was open.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Published entry fees

Recorded for: Del Valle Regional Park

Arroyo staging parking usd
0
Bus parking usd
25
Flat entry excludes
  • fishing permit
  • mussel inspection
Flat entry includes
  • vehicle parking
  • trailer parking
  • boat launch
Flat entry season
April through Labor Day
Trailered vehicle parking usd
5
Vehicle parking usd
5
Weekend holiday flat entry usd
10
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page lists $5 vehicle parking, $5 trailered-vehicle parking, $25 bus parking, and no parking fee at Arroyo staging. On weekends and holidays from April through Labor Day it lists a $10 flat entry fee including vehicle and trailer parking and boat launch, excluding fishing permits and mussel inspection.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Seasonal gate hours

Recorded for: Del Valle Regional Park

After labor day through september 30
  • 06:00
  • 20:00
April
  • 06:00
  • 20:00
January february
  • 07:00
  • 18:00
March
  • 06:00
  • 19:00
May through labor day
  • 06:00
  • 21:00
November december
  • 07:00
  • 18:00
October
  • 06:00
  • 19:00
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page gives a 10 PM to 5 AM park curfew and seasonal park gate hours: 7 AM-6 PM January-February, 6 AM-7 PM March, 6 AM-8 PM April, 6 AM-9 PM May through Labor Day, 6 AM-8 PM after Labor Day through September 30, 6 AM-7 PM October, and 7 AM-6 PM November-December.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Street address

Recorded for: Del Valle Regional Park

7000 Del Valle Road, Livermore, CA 94550
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page identifies Del Valle Regional Park as an East Bay Regional Park District park about ten miles south of Livermore, with a 4,316-acre park around a five-mile-long lake; it lists 7000 Del Valle Road, Livermore, California 94550 and coordinates 37.56917, -121.68722.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The EBRPD page places Del Valle ten miles south of Livermore, describes a five-mile lake in a 4,395-acre park, gives the address 7000 Del Valle Road, and calls the park the eastern gateway to the 28-mile Ohlone Wilderness Trail.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Trail condition

Recorded for: Del Valle Regional Park

storm damage use caution
Evidence and sources (1)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    At retrieval, the park was open with limited amenities; the swim-beach food concession was closed until further notice, storm-damaged trails required caution, construction equipment or noise could be present during working hours, and the visitor center was open.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Accesses

Recorded for: Del Valle Road Park Entrance

park-del-valle-regional-park
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-main-entrance

  1. Evidence stance: supports · Evidence details

    The page distinguishes the fee-charging main entrance on Del Valle Road from the no-fee Arroyo Road Staging Area and lists two Del Valle Road walk-in entrances.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Camping

Developed group camping capacity

Recorded for: Del Valle Regional Park

Maximum people
50
Maximum vehicles
15
Minimum people
17
Evidence and sources (1)

Claim effective interval: 2026-01-01 to 2026-12-31

Spatial scope IDs: scope-del-valle-group-camps

  1. Evidence stance: supports · Evidence details

    The 2026 group camping sheet gives Del Valle developed group camping a minimum of 17 people, maximum of 50, and 15 vehicles, while warning that RVs and similar vehicles are not permitted.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2026-01-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 1

    References are not a confirmation of current availability.

Group camping reservation

Recorded for: Del Valle Regional Park

Channel
phone
Minimum advance business days
3
Minimum group size
17
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    Groups of 17 or more are directed to group campsites. Group campsites are available by phone reservation only and require at least three business days of advance notice; requirements may differ for reservations made less than seven days ahead.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Camping requires a reservation. Family sites require at least two business days; group sites at least three. ADA and group reservations are phone-only. Family sites may also be booked online.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Published seasonal closures

Recorded for: Del Valle Regional Park

Caballo loco
  • 11-01
  • 03-31
Cedar camp
until further notice
Hetch hetchy
  • 11-01
  • 03-31
Punta vaca
  • 11-01
  • 04-30
Venados
  • 11-01
  • 03-31
Wild turkey
  • 11-01
  • 03-31
Cabins
  • 01-01
  • 01-31
Family sites 111 150
  • 11-01
  • 04-30
Family sites 65 110
  • 11-01
  • 03-31
Subject to change without notice
Yes
Evidence and sources (1)

Claim effective interval: 2026-05-20 to No end bound

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    Updated 2026-05-20: cabins close Jan 1-31; Cedar is closed until further notice; Caballo Loco, Hetch Hetchy, Venados and Wild Turkey close Nov 1-Mar 31; family sites 65-110 close Nov 1-Mar 31; sites 111-150 and Punta Vaca close Nov 1-Apr 30. Dates may change without notice.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2026-05-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 1

    References are not a confirmation of current availability.

Connectivity warning

Recorded for: Del Valle Family Campground

Cell service
not available per source warning
Wifi
not available per source warning
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Evidence notes: Treat as a planning warning from the booking page, not a coverage guarantee for every carrier and location.

    The live page places no numeric limit on tents but requires them to be on dirt or designated tent pads and prohibits tents on lawns. It also warns that cell service and Wi-Fi are unavailable.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    Wayproof live Chrome source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

    Recorded artifact references
    • Additional Information

    References are not a confirmation of current availability.

Dog rules

Recorded for: Del Valle Family Campground

Confined during quiet hours
Yes
Excluded places
  • swim beach
  • swim area
  • cabins
  • select trails
Leash in developed areas
Yes
Maximum per site
3
Trained service animal exception
Yes
Unattended allowed
No
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    The page permits at most three dogs per campsite, requires leashes in campgrounds and developed areas, requires confinement in a vehicle or tent during quiet hours, prohibits unattended dogs, and excludes dogs other than trained service animals from swim beaches, swim areas, cabins, and select trails.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: Supports leash, maximum-number, unattended, and water-exclusion portions; other claim fields come from campground-specific evidence.

    Sections 801.1-801.3 prohibit dog swimming at Lake Del Valle from Oak Point north to the East Marina; require leashes in developed areas including campgrounds; cap leashes at six feet and dogs at three per person; and require campground animals to be attended and leashed or confined.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2023-09-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF pages 25-27

    References are not a confirmation of current availability.

Fire rules

Recorded for: Del Valle Family Campground

Adult attendance required
Yes
Designated areas only
Yes
Extinguish before departure
Yes
Subject to current restrictions
Yes
Wood collection allowed
No
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Fire restrictions may apply. Fires are allowed only in designated areas, must use commercially purchased wood, processed logs, or cut lumber, must remain attended by an adult, and must be extinguished before departure. Collecting wood, smoking, and vaping are prohibited.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: Supports designated-area, attendance, extinguishing, and changing-restriction portions; it does not address wood collection.

    Sections 404-404.3 limit open fires to designated facilities, prohibit unattended fires, allow escalation during fire season, and prohibit smoking and vaping throughout the District.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2023-09-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 7

    References are not a confirmation of current availability.

Campground gate

Recorded for: Del Valle Family Campground

Closes
22:00
Opens
08:00
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    The campground gates are locked from 10:00 PM to 8:00 AM, and the park entrance and campground gates close daily at 10:00 PM.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Generators allowed

Recorded for: Del Valle Family Campground

No
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Quiet hours are 10:00 PM to 7:00 AM. The page prohibits generators, including a separate statement that gas generators are not allowed.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

People per family site

Recorded for: Del Valle Family Campground

8
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: Section 400.3(a).

    Revised September 2023. Sections 400.1-400.6 require a valid permit in designated camping areas; limit family sites to eight occupants, 15 consecutive days and 30 days per year with a two-day break; regulate disturbing generators and sound devices; govern juveniles; and apply camping rules to tent, RV, cabin, and walk-in camping.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2023-09-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF pages 5-6

    References are not a confirmation of current availability.

Quiet hours

Recorded for: Del Valle Family Campground

Ends
07:00
Starts
22:00
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Quiet hours are 10:00 PM to 7:00 AM. The page prohibits generators, including a separate statement that gas generators are not allowed.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Book a campsite

Recorded for: Del Valle Family Campground

Channel
online
Maximum advance weeks
12
Minimum advance hours
48
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Tent or RV family campsites at Del Valle may be reserved online from 48 hours through 12 weeks before arrival; no more than two family campsites may be reserved for the same date per household, primary occupant, customer name, or registered vehicles.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Shared facilities

Recorded for: Del Valle Family Campground

  • toilets
  • showers
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The EBRPD page states that the family campground has 150 sites, including two accessible sites and 21 sites with water, sewage, and 120-volt 50/30-amp electrical hookups; toilets and showers are centrally located. It separately states that five cabin sites take up to eight people and sleep five.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Site inventory

Recorded for: Del Valle Family Campground

Cabins
5
Drive up tent
124
Rv full hookup
21
Total
150
Evidence and sources (3)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    The page describes Del Valle Family Campground as 150 campsites: 21 RV sites with full hookups, 124 drive-up tent sites, and five cabins, served by centrally located toilets and showers.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The EBRPD page states that the family campground has 150 sites, including two accessible sites and 21 sites with water, sewage, and 120-volt 50/30-amp electrical hookups; toilets and showers are centrally located. It separately states that five cabin sites take up to eight people and sleep five.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    The current camping page lists 150 family sites: 21 full-hookup RV sites, 124 drive-up tent sites, and five cabins; all family sites allow at most eight people and two vehicles.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Vehicles per family site

Recorded for: Del Valle Family Campground

2
Evidence and sources (2)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-family-campground

  1. Evidence stance: supports · Evidence details

    Family campsites allow up to eight people and two vehicles. Family camping is limited to 15 consecutive nights and 30 total nights per year, with 48 hours separating reservations after a 15-night stay.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: Section 901.1(q).

    Section 901.1 prohibits more than two vehicles at a campground site and parking off the paved pad.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2023-09-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • PDF page 32

    References are not a confirmation of current availability.

Swimming, boating, and lake conditions

Swimming advisory

Recorded for: Del Valle East Swim Beach

caution
Evidence and sources (4)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-east-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Water availability

Recorded for: Del Valle West Swim Beach

no water
Evidence and sources (4)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-del-valle-west-beach

  1. Evidence stance: supports · Evidence details

    At retrieval, the EBRPD page posted a blue-green algae Caution Advisory for the East Swim Beach and stated that the West Swim Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the current-conditions table listed a Caution Advisory for the Del Valle East Swim Beach and no advisory for the West Swim Beach, where it reported no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    At retrieval, East Beach had a blue-green algae Caution Advisory and West Beach had no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  4. Evidence stance: supports · Evidence details

    At retrieval, the table listed a Caution algae advisory at Del Valle East Beach and no advisory at West Beach, where there was no water because of low lake levels.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Boat inspection

Recorded for: Lake Del Valle

Yes
Evidence and sources (3)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    EBRPD requires watercraft inspection at Contra Loma, Del Valle, Lake Chabot, Quarry Lakes, and Shadow Cliffs. Covered craft include boats, kayaks, canoes, sailboats, inflatable craft, and every form of floating board. Campers with watercraft must complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Cross lake boat quarantine

Recorded for: Lake Del Valle

Duration days
30
Restricted destination
Lake Del Valle
Trigger lake
Contra Loma Reservoir
Evidence and sources (2)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The current notice reports golden mussels at Contra Loma and states that a boat launched there is quarantined for 30 days from inspected lakes including Del Valle. All vessels should be cleaned, drained, and dried, and bands are honored only at their issuing lake.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Published boating fees

Recorded for: Lake Del Valle

Motorized inspection usd
10
Motorized launch usd
5
Non motorized inspection usd
5
Non motorized launch usd
3
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page lists launch and inspection fees of $5 and $10 for motorized vessels and $3 and $5 for non-motorized vessels, a lake-wide 10 mph speed limit, and a prohibition on hydrofoils and E-Foils. It permits any-size boats at the public ramp.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Published swimming facilities

Recorded for: Lake Del Valle

Beaches
2
Lifeguards
during posted periods
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page lists two swimming beaches, lifeguards during posted periods, boat rentals, and a public launch for boats of any size; it warns that boaters must comply with the Invasive Mussel Prevention Program and mandatory inspections.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

Swimming safety guidance

Recorded for: Lake Del Valle

Check posted signs
Yes
Days to avoid after rain
3
Keep dogs away
Yes
Keep water out of mouth
Yes
Shower and dry after
Yes
Evidence and sources (1)

No claim effective interval recorded.

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    The page advises keeping water out of the mouth, showering and towel-drying promptly after swimming, avoiding lake swimming for three days after rain, checking posted water-quality signs, and keeping dogs away from the water.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Watercraft preparation

Recorded for: Lake Del Valle

  • clean
  • drain
  • dry
Evidence and sources (2)

Claim effective interval: 2026-09-20 to 2026-09-20

Spatial scope IDs: scope-lake-del-valle

  1. Evidence stance: supports · Evidence details

    At retrieval, the page stated that a boat launched at Contra Loma would be quarantined for 30 days from inspected lakes including Del Valle; vessels must be cleaned, drained, and dried, and boat bands are honored only by the lake that issued them. It also requires campground guests with watercraft to complete inspection before campground check-in.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The current notice reports golden mussels at Contra Loma and states that a boat launched there is quarantined for 30 days from inspected lakes including Del Valle. All vessels should be cleaned, drained, and dried, and bands are honored only at their issuing lake.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    2026-09-20T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Ohlone Wilderness Trail

Del Valle is the eastern gateway to the corridor. For Mission Peak, Stanford Avenue, Ohlone College, camps, water, route distances, and alternatives, use the complete Ohlone Trail guide.

Eastern gateway

Recorded for: Ohlone Wilderness Trail

park-del-valle-regional-park
Evidence and sources (3)

No claim effective interval recorded.

Spatial scope IDs: scope-del-valle-park

  1. Evidence stance: supports · Evidence details

    The page calls Del Valle the eastern gateway to the Ohlone Wilderness Trail, describes the trail as 28 miles connecting to Sunol and Mission Peak, and states that permits are required on portions and may be purchased at the park entrance kiosk; it separately states that backpack reservations remain available.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    The EBRPD page places Del Valle ten miles south of Livermore, describes a five-mile lake in a 4,395-acre park, gives the address 7000 Del Valle Road, and calls the park the eastern gateway to the 28-mile Ohlone Wilderness Trail.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    user-supplied page transcription
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  3. Evidence stance: supports · Evidence details

    The 28-mile Ohlone Wilderness Trail is open to hikers and equestrians, not bicycles or motor vehicles, and crosses Ohlone Wilderness, Mission Peak, Sunol, Del Valle, and leased watershed lands where users must stay in the trail corridor.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

Ohlone overnights

Recorded for: Ohlone Wilderness Trail

Channel
phone
Designated sites only
Yes
Minimum advance days
2
Required
Yes
Evidence and sources (3)

No claim effective interval recorded.

Spatial scope IDs: scope-ohlone-wilderness-trail

  1. Evidence stance: supports · Evidence details

    Overnight use requires a separate reservation for a designated trail campsite, made by phone at least two days in advance. Reserved overnight parking is allowed at Del Valle, Sunol, and Mission Peak parking lots.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: The Sunol park page corroborates designated-site reservation and two-business-day advance requirements.

    The page states that as of January 1, 2026 an Ohlone permit is not required and no additional permits will be sold. Overnight backpacking reservations remain required, and designated Ohlone Trail campsites require advance reservation two or more business days ahead.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof live source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • Ohlone Wilderness Trail

    References are not a confirmation of current availability.

  3. Evidence stance: supports · Evidence details

    Evidence notes: The booking overview corroborates the overnight reservation requirement and expresses the lead time as 48 hours.

    The rendered overview identifies Sunol as an EBRPD campsite facility with limited backpack sites, describes the Ohlone Wilderness Trail as a hiking destination, and requires backpack reservations for overnight stays at least 48 hours in advance.

    Publisher
    ReserveAmerica / East Bay Regional Park District
    Observer / attribution
    Wayproof live Chrome source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: ReserveAmerica / East Bay Regional Park District

    Recorded artifact references
    • Important Information
    • Description
    • Recreation
    • Facilities

    References are not a confirmation of current availability.

Trail permit required

Recorded for: Ohlone Wilderness Trail

No
Evidence and sources (2)

Claim effective interval: 2026-01-01 to No end bound

Spatial scope IDs: scope-ohlone-wilderness-trail

  1. Evidence stance: supports · Evidence details

    As of 2026-01-01, an Ohlone trail permit is not required and no additional permits will be sold. An overnight backpacking reservation is still required.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof source review
    Observed at
    2026-01-01T00:00:00+00:00
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

  2. Evidence stance: supports · Evidence details

    Evidence notes: The Sunol park page independently corroborates the Ohlone park page's effective-date statement.

    The page states that as of January 1, 2026 an Ohlone permit is not required and no additional permits will be sold. Overnight backpacking reservations remain required, and designated Ohlone Trail campsites require advance reservation two or more business days ahead.

    Publisher
    East Bay Regional Park District
    Observer / attribution
    Wayproof live source review
    Observed at
    Unknown
    Retrieved at
    2026-09-20T00:00:00+00:00

    Retrieval time does not establish when an event occurred.

    Observation details · Source details · Original source: East Bay Regional Park District

    Recorded artifact references
    • Ohlone Wilderness Trail

    References are not a confirmation of current availability.

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