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Castle Rock Regional Recreation Area is an 18,000 acre (73 km2) regional park in the East Bay Regional Park District. It is located in Contra Costa County, in the East Bay area of northern California. The park is located in the scenic sandstone canyon of the Diablo Foothills of the northern Diablo Range, west of Mount Diablo and Mount Diablo State Park. Walnut Creek is the closest town to the north.


Castle Rock Regional Recreation Area is bordered by: Diablo Foothills Regional Park in the west, and Shell Ridge Open Space in the north. Together, these three parks provide visitors with 18,000 acres (73 km2) of parkland.


Castle Rock has historically specialized in the preparation of picnic events for large groups of 300 or more people, but in 2007, the East Bay Regional Park District began to renovate both the drop-in and the reserved picnic area. Catering services may also be available. Reservations can be made by calling 888-327-2757, Press Option 2. Note that there is no shuttle service from the front gate to the park. Bring a car to transport your heavy or bulky goods. The distance from the front gate to the pool area is one quarter mile, an average of six minutes' walk. The distance from the Orchard Staging area to the pool area is half a mile.


Diablo Foothills Regional Park and Castle Rock Park are bordered by Mt. Diablo State Park and Walnut Creek Open Space, providing access to more than 18,000 acres of public land.


Basketball courts, horseshoe pits, a volleyball court, a softball field and a picnic area are now open to the public every day. There are 4 sites with a capacity of 100 and 3 with a capacity of 50 which are reserved and can only be reserved by calling 888. Other picnic sites are available on a first-come and first-serve basis.


The pool complex has a swimming pool and a deck area of 30 feet by 70 feet. In addition, the complex is fully accessible to persons with disabilities, including a bathhouse and an accessible elevator to the pool. (Access fee to the swimming pool to enter the swimming area.) Swimming is allowed only when lifeguards are on duty.


Once the capacity of the swimming facility has been reached, no new entries will be allowed for the rest of the day (or at the discretion of the Park Supervisor) for the safety of the public. Please take this into account when planning your visit.

Alamo, California is home to some amazing sites that any discerning visitor should definitely check out on their next visit: 


  • Livorna Park

  • Round Hill Country Club

  • China Wall

  • Eugene O'Neill National Historic Site

  • Las Trampas Regional Wilderness Park

  • Alamo Hardware

  • Diablo Foothills Regional Park

  • Roll With A Goal


After visiting these lovely places make sure to stop by and say “Hello” to us at our downtown Danville location, DPG Pavers Danville Location on 4115 Blackhawk Plaza Circle!

Image by Jorge Flores
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