We arrived after dark shortly before 8 PM, and there were still office staff available. They were friendly. The big problem we had was that the roads through the camp sites were poorly defined, and we had a lot of difficulty finding and getting into our site. I did not see any slabs or gravel. The sites were packed dirt or sand. For awhile, it was a nightmare getting to our site. The next day, the place seemed better with the sun up. It looked to me like a place for kids in the summertime.
Very nice park and very nice staff. A man escorted us to our site. They even had places to wash our dogs if we wanted to do so. Concrete slabs with plenty of space, with private restroom/shower facilities. I would definitely go there again!