Begin at the north end of the West Coyote Hills Tree Park on Parks Road. Follow the trail down to Coyote Hills Drive. Follow Coyote Hills Drive until you hit a detour which will take you south to Rosecrans Ave. Upon hitting Rosecrans Ave. head west. For a spectacular view of Fullerton, look South as you make your way down Rosecrans Ave. Take a break at West Coyote Hills Park and head directly towards Ralph B. Clark Regional Park.