Did this one when I must've been 8 or 9. Been up there numerous times. Recent routes have been up Ray Miller, along ridge, drop into La Jolla Valley, connect to Chumash Trail, and up to the top with the flag.
I live close by so I go here quite often as it's probably one of the closet hikes to home. If it's a clear day you can see the Channel Islands and some nice meadows to the east. Overall this is a short fun hike to do if you're driving along PCH. The way I usually go up is from across from the Sea bee shoting range.