Malibu Creek State Park is a state park of California, United States, preserving the Malibu Creek canyon in the Santa Monica Mountains. The 8,215-acre (3,324 ha) park was established in 1974. Recreation activities in the park include: horseback riding, bird watching, hiking, mountain biking, rock climbing, fishing, and picnicking. Ranger led programs and hikes are also offered. The Backbone Trail, a multi-use long-distance trail spanning the Santa Monica Mountains, passes through Malibu Creek State Park. Another long distance trail, the Coastal Slope Trail, is under construction and will pass through the remote southern tip of the park. Topanga State Park is a California state park located in the Santa Monica Mountains, within Los Angeles County, California. Many trails exist within the park, which are accessible to hikers, mountain bikers, and horseback riders, as posted. The primary trailheads are at the Trippet Ranch area, including for the Musch Trail, passing prominent Eagle Rock. Many trails also are wider dirt fire roads. Unpaved portions of Mulholland Drive are accessible through the Temescal Fire Road and Mulholland Drive. The Backbone Trail System, a multi-use long-distance trail spanning nearly 70 miles across the Santa Monica Mountains, passes through Topanga State Park. It can be accessed via the Trippet Ranch trailhead. The Santa Inez Trail is accessible from Trippet Ranch on the west, or the Palisades Highlands neighborhood on the east. The trail's lower section follows Santa Inez Creek through riparian habitats, and then climbs through unique and massive sandstone formations to the Topanga Fire Road and Trippet Ranch.