Justin-
I fished San Diego this past weekend without much success. I was DIY fisher no guide. I have some suggestions that may help you on locations but remember I was shut out.
1-if you fish the beach, you need fast sinking full line. The water is cold so bring either a wet suit or waders. I brought waders and was fine. 7 weight is perfect.
There is a park and its essentially a huge sand flat. The channel is on the far side by the rocks. Its huge tidal flows, rising 5+ feet. The locals recommended fishing the incoming tide. I was throwing mole crab patterns (essentially clousers with brown bucktail, a little gold flash, tied w. Texas burnt orange thread). I threw a bunch of other colors but no luck. During low tide on the flats you can see big holes and areas that look fishy. Again the locals like fast sinking line with a slow retrieve.
3-Recommend a stripping basket. Waves get your lines in a mess and the 2nd spot I was making big blind casts in pretty heavy rising tides. Hit me with an email and I will give you my suggestion on solving that problem.
Light tackle works well there. The locals on the jetty were all very friendly and helpful.
I ended up with a spotted bay bass and a skate. A lot of work for not much fish.
If you are into seafood check out Blue Water Seafood of San Diego. Its a cool local market where you can buy fresh fish and sandwiches, salads etc. Local joint with lines out the front most days.
Good luck.
John