If you are looking for a nice loop hike in the Santa Monica Mountains above Beverly Hills, give Hastain Trail in Franklin Canyon Park a try. Hastain Trail can actually be used for two loops, one easy 1.8-mile loop with 350 feet of elevation gain and one moderate 2.2-mile option with 550 feet of elevation gain. Each trek is a satisfying way to explore Franklin Canyon Park. Franklin Canyon Park preserves 605 acres in the Santa Monica Mountains including a former ranch acquired by the Santa Monica Mountains Conservancy in 1981. Dogs are allowed on leashes in Franklin Canyon Park.