Park Hours: Fall – Winter Hours, 7 a.m. to 6 p.m. PST
Park Hours: Spring – Summer Hours, 7 a.m. to 9 p.m. PDT
Office Hours: 7 a.m. – 3:30 p.m. Mon. – Thurs
Office closed on Fridays, weekends & holidays.
Interpretive Center is temporarily closed.

Parking fees: $3 per vehicle entry Monday – Friday; $5 Saturday – Sunday; Higher for some holidays and events (Fee Information)

Ralph B. Clark Regional Park is nestled at the foot of the Coyote Hills. The 104 acre property extends north and south of Rosecrans Avenue with the softball complex. The park lands range from large open grass areas, to gently rolling hills of native plants, to sheer sandstone cliffs to the north.

A variety of recreational activities are available at Ralph B. Clark Park. These include large shaded picnic areas, hiking and biking trails, and children’s playground areas. Team sports enthusiasts can enjoy spacious play areas including two sand volleyball courts, three softball fields and a baseball diamond. Children of all ages can enjoy fishing in the stocked three acre lake. Four tennis courts are located within the park and an amphitheater which overlooks the lake, is ideal for outdoor plays and recreation programs.

The Interpretive Center, which opened in September of 1988, contains a paleontology museum that provides an educational view of prehistoric Orange County through exhibits, programs and guided tours. Also the opportunity is provided to watch scientists and volunteers excavate and prepare fossil specimens for study and educational exhibits.