Anywhere between Ventura and Santa Barbara has great surf fishing. The corbina are out in numbers right now, and the surf perch have been plentiful and huge. Use anything that resembles a sand crab, and they will grab your fly.
There have also been lots of leopard sharks cruising the beaches as well. I would recommend at least an 8 wt. in case you hook into one of the sharks. The leopards usually like red flies.
Early mornings are best, and try to hit an incoming tide. You'll miss the crowds of beachgoers at that time and the conditions will be best early in the morning.
PM me if you want any specifics on sweet spots in the area.