You've read me complaining about this before. The campground is fully booked, but 40% of the sites are empty--reserved, but not occupied. What a waste!
California may try to help...Check this out: ktla.com/news/california/california-campsite-reservation-bill-passes-state-assembly/
Credit if you cancel before seven days. And if you don't show on the first night, the whole reservation is cancelled and the site opened up.