The lava was sparsely marked with white spray paint to guide the way.
There were only two other people at the beach, so it felt like we had the place to ourselves. One surprising thing - the sand wasn't hot at all. I've been on white sand beaches that got so hot that it hurt to walk on them without shoes, so I was surprised.
The facilities at the park are minimal. There are no restrooms at the beach we went to - those are located back near the parking area. And they primitive. No running water, it is basically a modern outhouse.
We ate dinner that night at Killer Tacos. We both had fish tacos, which were quite good and cheap!