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 > East Bay Regional Park District | Embrace Life! > Parks > Castle Rock Regional Recreation Area

Park Info

1700 Castle Rock Road
Walnut Creek, CA 94598

Park Entrances
> Castle Rock Main Entrance
> Orchard Staging Area
> Equestrian Parking
> Borges Ranch Trailhead

Phone Number
Toll Free: 888-EBPARKS (888-327-2757), option 3, extension 4515

Local Weather

Panorama Panorama

Download PDF Map
Yahoo Map

Park Hours
Open between 5:00am and 10:00pm unless otherwise posted or permitted

Park Events
Click HERE for upcoming events

Parking Fee
No fee

Beach Access Fee
See the Swim Facilities page

Grazing Information
Grazing in the Parks

Camping Reservations
No reservable campgrounds

Picnic Reservations
1-888-EBPARKS or 1-888-327-2757, press option 2

Emergency Number

EBRPD Headquarters
1-888-EBPARKS or 1-888-327-2757

Castle Rock Regional Recreation Area

Castle Rock Recreation Area

Annual Closure Notice:

Starting February 1st – July 31st the rock formations knows as the “Castle Rock” area of Mount Diablo State Park will be closed to all visitors. This closure does not affect the Castle Rock Recreation area.  This area is accessed mostly by Stage Road Trail which is in Diablo Foothills Park and near the Castle Rock Recreation area of EBRPD.   The majority of trails in Diablo Foothills will not be affected by this closure.  Stage Road Trail will NOT be affected by this closure, but all areas east of the trail leading up to the rock formation areas will be off limits.  This closure is to help protect the American peregrine falcon (Falco peregrinus anatum). This protected species is territorial and highly sensitive to disturbance during nesting season. The rocks – located in Pine Canyon – are closed to all access during these same months each year. 

Although the peregrine is no longer endangered, it is still a fully protected species in California, and disturbance of nesting peregrines is punishable by fines and even arrest. Please abide by the posted regulations, stay out of the restricted areas and don’t disturb the nesting birds. Public cooperation will be key to the success of the program.

For further please contact the Park Supervisor Bridget Calvey at 510-544-3086. 

About The Park

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

Park Activities

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.

Swimming Castle Rock

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.

ADA accessibility iconPark Accessibility

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.

To Reach The Park

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.

Click here for public transit information.

Trail Map

Click the map image below to see an enlarged version.

Castle Rock Trail Map
Directions for navigating the enlarged map:
When the enlarged version of the map opens click on the 'Full Expand' icon in the lower right hand corner of the map to see the 'Actual Size' map.

'Full Expand' icon > Full Expand

When the 'Actual Size' map is viewable, you can 'Click-Hold and Drag' the mouse button (left on a PC) to reposition the map, as desired.

'Single-Click' on the 'Enlarged' or 'Actual Size' map to return to the park page.