When I lived in LA I fished at Manhattan Pier and surf fish off Long Beach shores. San Clemente pier several times as well. 1st perch off San Clemente pier. I now fish in San Diego but it is tough fishing in San Diego. Seems like bait fishing is the way to go which isn't my style. I like lure fishing. Caught my 2nd perch using bait - combination of a piece of shrimp and sand crab. I haven't fished off Silver Strand. I geenrally fish by areas where there is food and restrooms near by.
Silver Strand is a state beach. There are restrooms, but I'm not sure about food as I have a go-bag that I carry that has a camp stove and
various things to eat. Ice chest with some other good eats if I want to put some effort into preparations. Because of the location though, you
need to be aware of the water conditions. Apparently there is a good bit of runoff from the sewage treatment plants in TJ at that beach...