Do you use Strava? that is the best way to look for maps, and follow me, Roberto Miranda...
We parked at the mall...
Albertsons-Sav-on - Avenida Pico & Presidio
804 Avenida Pico, San Clemente, CA 92672
from there, climb up via Calle del Cerro, connected with trail head for Ridgeline Trail at the top, almost down of Calle del Cerro, from there, follow the video...
there is a short cut, turn right on avenida "vista montana", turn left on "vista bolivia", turn left on "del dios" and the trail head is also there, easy way to climb! and you are done, ready for a great DH!
look for the Water Tanks, and follow the trail...