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Organization Title

Castle Rock State Park

Contact Information

(408) 867-2952

Park Hours

Sunrise to sunset

Trail Camps: First-come, first-serve

Driving Directions to Castle Rock SP

The park is located on Highway 35, just 2 1/2 miles southeast of the junction with Highway 9.

Online reservations are not available for this park.

Upcoming Park Events

No events scheduled at this moment.

Access Notice:

Due to the catastrophic failure of Skyline Boulevard (Highway 35) south of the Castle Rock main lot, visitors cannot access the park from Black Road, Summit Road, or Bear Creek Road. It is still possible to access the Castle Rock main lot from Highway 9, Alpine Road, Page Mill Road and other points north of Castle Rock State Park on Skyline Boulevard (Highway 35).  There is no estimate as to when this road will be repaired.

Visiting Castle Rock

Castle Rock State Park is a land of sculpted sandstone, lush forests, and sweeping vistas. From one of the highest ridges in the Santa Cruz Mountains, park visitors enjoy hiking, backpacking, and horseback riding. Rock climbers explore the park's caverns and rocks, including the namesake Castle Rock. Plant-lovers come for California black oaks, knobcone pines, and high-elevation coast redwoods. The park’s 34 miles of rugged trails conveniently connect to an extensive trail system that links the Santa Clara and San Lorenzo valleys to nearby Big Basin Redwoods State Park and open space preserves on the Skyline to the Sea Trail

Primitive campsites for backpackers are the only overnight facilities. Equestrians are urged to call ahead for current trail information, and smokers are advised that, due to high fire hazard, smoking is prohibited on the trails within Castle Rock State Park.

Trail Camps

Campsites at Castle Rock Trail Camp are available on a first come first serviced basis. For more information and reservations for Waterman Gap Trail Camp, please visit the Santa Cruz Mountain State Parks Backcountry Trail Camp Page.

Facilities - Activities

Castle Rock State Park offers 34 miles of trails.

Except for service animals, dogs are prohibited throughout the park. Nearby Sanborn County Park allows dogs.

Horses are allowed on Saratoga Toll Road which extends from Saratoga Gap to Big Basin Redwoods State Park.

Bicycles are allowed on the Skyline Trail (Bay Area Ridge Trail) located on the north side of Highway 35.

Castle Rock Parking area has a vehicle day-use of $8. Please bring cash.

There is no visitor center or store

Please Remember
 • Glass containers and smoking are prohibited throughout the park. 

 • Firearms or any device capable of harming any person or animal are prohibited— including BB guns, spears, bows, arrows and slingshots.

 • Fires are permitted only in designated fire rings in the Castle Rock Trail Camp during the OFF fire season. Gathering firewood, including twigs and leaves, is prohibited. Firewood is sold at the Castle   Rock Trail Camp.

 • Please respect private property rights and stay on designated trails.

 • All natural and cultural features are protected by law. Do not pick wildflowers, mushrooms, or other plants, or remove any park feature. Do not deface rocks with graffiti or feed, disturb, or harm wildlife.

 • Beware of rattlesnakes, ticks, and poison oak in camp and on trails.

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Available Activities and Facilities at Castle Rock State Park

Environmental Campsites
Hike or Bike Campsites
Hiking Trails
Horseback Riding
Historical/Cultural Site
Interpretive Exhibits
Vista Point
Drinking Water Available