Thornhill Broome Campground

Bring you sunshades, sunblock, and a rake. There's absolutely no natural shade here, but who cares. Get into the ocean and shut it. Set a timer to remember to put on sunblock, because from sunrise to sunset - it's just pure sun.
Cell service is no good. That's fine. Bring a book.

Sand is going to get everywhere. There's no flush toilets - it's all portapotties. There are no hookups. If you have solar panels, you are going to live your best life.

The surf is awesome, that's why you camp here. Spend your days in the water, play on the beach, and build cairns with all the rocks on the beach.

People get weird about the boundaries of their campsite. if it gets weird, talk to the ranger (who swings by on a regular basis), let them handle the weirdo neighbors. The kids will run all over the place, and will run thru your site. You can either be the person who's going to be okay with it - OR grumble to yourself. You are in Southern California at the beach. Shut up and watch the waves.