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Cull Canyon Regional Recreation Area (Castro Valley)

This 360 acre park has about two miles of unpaved trails around the fishing lake. There is fishing in the reservoir that contains bass, catfish, and sunfish. 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. The lake is stocked with trout and catfish and there are also bass, blue-gill, crappie, and other fish. A popular event is the annual spring fishing derby. There are several fishing piers in the park. A wide range of rental boats as well as fishing license and permits are available at the marina.