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Cull Canyon Regional Recreation Area (Castro Valley)

This 360 acre park has about two miles of unpaved trails around the the fishing lake with trails to the east for hikers only and trails to the west for hikers and bicycles. Picnic tables, drinking fountains, and restrooms are plentiful.

Lake Chabot Marina Park (Castro Valley)

Lake Chabot Reservoir is a 315 acre lake that was built in 1874 as a primary source of water for the East Bay. Services include boat rentals, the Marina Cafe, picnicking, grassy play area, horseshoe pits, hiking, bicycling, jogging, and running trails, and seasonal lake boat tours. Lake Chabot offers over 20 miles of hiking trails that connect to the additional 70 miles of trails in adjoining Anthony Chabot Regional Park. Narrow single track trails are closed to bicycles.  Enjoy scenic walks on the 280 acre Fairmont Ridge or take the Lake Chabot History Walk.  For a preview of the walk, please click here