{
  "claims": [
    {
      "claim": {
        "claim_id": "claim-don-castro-visitor-profile",
        "evidence_ids": [
          "evidence-ebrpd-don-castro-visitor-profile"
        ],
        "predicate": "visitor_profile",
        "spatial_scope_ids": [
          "scope-don-castro-regional-recreation-area"
        ],
        "subject_id": "park-don-castro-regional-recreation-area",
        "temporal_scope": null,
        "value": {
          "access": "Woodroe Avenue entrance; approximately 10-minute walk from the nearest published bus stop",
          "accessible_facilities": [
            "restrooms",
            "drinking water",
            "parking",
            "loaner beach wheelchairs"
          ],
          "acreage": 101,
          "activities": [
            "fishing",
            "hiking",
            "horseback riding",
            "kid-friendly",
            "picnicking",
            "swimming"
          ],
          "address": "22400 Woodroe Avenue, Hayward, CA 94541",
          "bus_fee_usd": 25,
          "curfew": "22:00–05:00",
          "fishing": {
            "california_license_required_age": 16,
            "ebrpd_fishing_access_permit_required": false
          },
          "payment": "cashless",
          "reservoir": {
            "boating": false,
            "body_contact": false,
            "dogs_in_water": false,
            "name": "San Lorenzo Creek Reservoir",
            "swimming": false
          },
          "seasonal_parking_fee_usd": 5,
          "seasonal_parking_lot_hours": "08:00–22:00 March–October; 08:00–20:00 November–February",
          "swim_lagoon": {
            "animals": "only ADA-trained service dogs",
            "fee_required": true,
            "hours": "11:00–17:30; gates close 18:00",
            "season": "weekends and holidays May 16–September 27"
          },
          "trail_connections": [
            "Bay Area Ridge Trail",
            "Chabot-to-Garin Trail",
            "Five Canyons Open Space"
          ],
          "trailered_vehicle_fee_usd": 5
        }
      },
      "evidence": [
        {
          "claim_id": "claim-don-castro-visitor-profile",
          "evidence_id": "evidence-ebrpd-don-castro-visitor-profile",
          "notes": "Direct transcription and conservative structuring of planning-relevant fields from the official park page.",
          "observation_id": "observation-ebrpd-don-castro-visitor-profile",
          "stance": "supports"
        }
      ],
      "observations": [
        {
          "artifact_refs": [
            "Overview",
            "To Reach The Park",
            "Attractions"
          ],
          "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
          "observation_id": "observation-ebrpd-don-castro-visitor-profile",
          "observed_at": null,
          "observer": "Wayproof live source review",
          "retrieved_at": "2026-09-20T07:00:00+00:00",
          "source_id": "source-ebrpd-don-castro-park-page"
        }
      ],
      "sources": [
        {
          "locator": "https://www.ebparks.org/parks/don-castro",
          "publisher": "East Bay Regional Park District",
          "source_id": "source-ebrpd-don-castro-park-page"
        }
      ]
    }
  ],
  "entities": [
    {
      "entity_id": "park-don-castro-regional-recreation-area",
      "kind": "park",
      "name": "Don Castro Regional Recreation Area"
    }
  ],
  "history": [
    {
      "action": "ADD",
      "change_set_id": "wp-20260920-ebrpd-parks-batch-07",
      "evidence_refs": [],
      "knowledge_gap_refs": [],
      "path": "canonical/v0/observations/observation-ebrpd-don-castro-visitor-profile.json",
      "reason": "Add a deduplicated planning profile from the live EBRPD preserve page reviewed on 2026-09-20.",
      "record_id": "observation-ebrpd-don-castro-visitor-profile",
      "record_type": "observation",
      "summary": "Add four additional previously uncaptured EBRPD park visitor profiles."
    }
  ],
  "navigation": {
    "next_id": "observation-ebrpd-dry-creek-pioneer-visitor-profile",
    "position": 84,
    "previous_id": "observation-ebrpd-diablo-foothills-visitor-profile",
    "total": 1318
  },
  "observations": [
    {
      "artifact_refs": [
        "Overview",
        "To Reach The Park",
        "Attractions"
      ],
      "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
      "observation_id": "observation-ebrpd-don-castro-visitor-profile",
      "observed_at": null,
      "observer": "Wayproof live source review",
      "retrieved_at": "2026-09-20T07:00:00+00:00",
      "source_id": "source-ebrpd-don-castro-park-page"
    }
  ],
  "record": {
    "artifact_refs": [
      "Overview",
      "To Reach The Park",
      "Attractions"
    ],
    "content": "The live park page publishes the visitor profile represented by the associated claim, including access, operating information, facilities, and material restrictions.",
    "observation_id": "observation-ebrpd-don-castro-visitor-profile",
    "observed_at": null,
    "observer": "Wayproof live source review",
    "retrieved_at": "2026-09-20T07:00:00+00:00",
    "source_id": "source-ebrpd-don-castro-park-page"
  },
  "record_type": "observation",
  "related_records": [],
  "sources": [
    {
      "locator": "https://www.ebparks.org/parks/don-castro",
      "publisher": "East Bay Regional Park District",
      "source_id": "source-ebrpd-don-castro-park-page"
    }
  ]
}