Parks in Castro Valley
County and regional parks in the current Castro Valley guide.
Map & directions
Markers show approximate park locations, not individual facilities.
| Park | City | Size | Dogs | Fees | Facilities |
|---|---|---|---|---|---|
Bay Trees Park (official site, opens in a new tab)Official siteCastro Valley · 11 acresDogs: On leash | Castro Valley | 11 acres | On leash | —Not stated: The official park page does not list an entry or parking fee. Check with Hayward Area Recreation and Park District before you go. | Tennis CourtsBBQ GrillsPicnic AreaRestrooms |
 Carlos Bee ParkCastro Valley · 7 acresDogs: On leash | Castro Valley | 7 acres | On leash | —Not stated: The official park page does not list an entry or parking fee. Check with Hayward Area Recreation and Park District before you go. | BBQ GrillsPicnic AreaPlaygroundRestrooms |
Cull Canyon Regional Recreation AreaCastro Valley · 362 acresNo parking feeDogs: Leash in developed areas | Castro Valley | 362 acres | Leash in developed areas | No parking fee | BBQ GrillsPicnic AreaRestroomsSwimming |
| Castro Valley | 6 acres | On leash | —Not stated: The official park page does not list an entry or parking fee. Check with Hayward Area Recreation and Park District before you go. | PlaygroundBBQ GrillsPicnic Area | |
 Five Canyons Open SpaceCastro Valley · 226 acresNo parking feeDogs: Leash in developed areas | Castro Valley | 226 acres | Leash in developed areas | No parking fee | |
Greenridge Park (official site, opens in a new tab)Official siteCastro Valley · 46 acresDogs: On leash | Castro Valley | 46 acres | On leash | —Not stated: The official park page does not list an entry or parking fee. Check with Hayward Area Recreation and Park District before you go. | Picnic AreaPlaygroundRestroomsBBQ Grills |
 Lake Chabot Regional ParkCastro Valley · 624 acres$5 per vehicleDogs: Leash in developed areas | Castro Valley | 624 acres | Leash in developed areas | $5 per vehicle | Drinking Water |
Palomares Hills Park (official site, opens in a new tab)Official siteCastro Valley · 6 acresDogs: On leash | Castro Valley | 6 acres | On leash | BBQ GrillsDrinking WaterPicnic AreaPlayground |
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This guide currently covers 8 sourced parks. Check the managing agency for its complete park inventory.
Sources last checked Oct 15, 2026. See our source policy.