1700 Castle Rock Road
Walnut Creek, CA 94598
Toll Free: 888-EBPARKS (888-327-2757), option 3, extension 4515
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Open between 5:00am and 10:00pm unless otherwise posted or permitted
Click HERE for upcoming events
Beach Access Fee
See the Swim Facilities page
Grazing in the Parks
No reservable campgrounds
1-888-EBPARKS or 1-888-327-2757, press option 2
1-888-EBPARKS or 1-888-327-2757
Castle Rock Regional Recreation Area
Please see our Closure Page for information regarding the closure to all visitors of the “Castle Rock” area of Mount Diablo State Park from February 1 to July 31.
Adjacent to Diablo Foothills is Castle Rock Recreation Area located in a scenic canyon along Pine Creek. The area is dominated by oak woodlands and prominent sandstone formations.
Castle Rock has historically specialized in preparing picnic events for large groups of 300 or more people, but in 2007 the East Bay Regional Park District began renovating the park for drop-in as well as reservable picnic use. Catering service may also be available. Reservations may be made by calling 888-327-2757, press option 2. Note that there is no shuttle service into the park from the front gate. Bring a wagon to transport your heavy or bulky items. The distance from the front gate to the pool area is one-quarter mile, an average six-minute walk. The distance from the Orchard Staging Area to the pool area is one-half mile.
Besides Diablo Foothills, Castle Rock Park is bordered by Mt. Diablo State Park and Walnut Creek Open Space, providing access to more than 18,000 acres of public lands.
|Submit Your Photos to the EBRPD Photo Pool|
Volleyball courts, softball fields, and picnic sites are now open to the public daily. There are 4 sites with a capacity of 100 and 3 with a capacity of 50 that are reservable and they can only be reserved by calling the 888 number. Other picnic sites are available on a first-come, first-serve basis.
The pool complex features a 30 feet by 70 feet swimming pool and deck areas. In addition, the complex is fully accessible to individuals with disabilities, including the bathhouse and an accessible lift into the pool. (Pool access fee to enter swim area.) Swimming is allowed only when lifeguards are on duty. For current hours of operation and lifeguard service schedule, visit the Swim Facilities page.
The pathways within the park are wheelchair accessible. Other wheelchair accessible facilities in the park include restrooms, changing rooms and drinking fountains. Disabled persons: please contact the park supervisor for transportation assistance from the park entrance gate.
Exit I-680 on Ygnacio Valley Road in Walnut Creek and drive east. After about three miles turn right on Walnut Avenue. After about two miles turn right on Oak Grove Road, then bear right onto Castle Rock Road and follow it to the Orchard Staging Area on the right (This lot closed during winter and wet weather). There is informal parking near the park entrance at the end of Castle Rock Road.
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'Single-Click' on the 'Enlarged' or 'Actual Size' map to return to the park page.