Beautiful walk through grasslands the rock pool, just beyobd Is a Rock Wall that is popular with local rock climbers. The movie Planet of the Apes (1968) was shot here! lGrasslands Trail to Rock Pool - Malibu Creek State Park on AllTrails https://www.alltrails.com/explore/recording/afternoon-bike-tour-at-grasslands-trail-d84210a?p=-1&sh=gyaqyb 3.2 mi 308 ft Out/Back Free street parking at trailhead.