Santa Monica Mountains. Climbing - Santa Monica Mountains National Recreation Area (U.S. National Park Service) The Santa Monica Mountains close proximity to Los Angeles has made it a preeminent destination for rock climbers of all skill levels. Local crags, from Echo Cliffs to Malibu Creek State Park, increase in popularity every year. With this in mind, the National Park Service and outdoor enthusiasts must work together to ensure these spots remain enjoyable and unimpaired for future generations.