Open between 7a.m. - 6 p.m., or 7 a.m. - 9 p.m., depending on the time of year, Ralph B. Clark Regional Park is a great little neighborhood getaway. The park is nestles at the foot of the Coyote Hills, and has 105 acres that extends north and south of Rosecrans Avenue. Terrain ranges from large open grass areas, to gently rolling hills of native plants, to sheer sandstone cliffs to the north.
There are nice paved trails that run through this park. There are large shaded picnic areas, hiking and biking trails, and children's playground areas. Don't miss the 2 sand volleyball courts, 3 softball fields, and one baseball field. There is also a 3 acre stocked lake, four tennis courts, and an amphitheater.
33.894963, -117.977825
http://www.tripleblaze.com/trail.php?c=3&i=6831