There are two campgrounds at the Big Trees State Park. I can only speak for the Oak Hollow campground. It was overall a pleasant stay. I went during the week so there wasn't very many people there although there seemed to be quite a few spots so I'm sure it is quite a bit noisier on weekends especially during the summer. The site we were in wasn't one of the "prime" spots recommended in a camping guide I looked at but it was still pretty decent. Most of the sites seemed pretty spacious. The site had a bear boxe, a fire ring with a grate to allow grilling, and a picnic table. There were actual bathrooms with sinks not porta potties. The park itself is beautiful as well, we hiked the north and south groves. The visitors center is very cute as well containing a small museum, gift shop, and sitting area. The only complaibts I had were the cost per night ($35) plus an extra $10 for a second car and the $8 bundle of wood which was barely enough for a nights fire. The per night fee was totally worth it, I'm just cheap and prefer to camp at free or low cost places.