We stayed at the Petaluma KOA for 10 nights to be able to tour the areas around the park. We were placed in space 249 which has Kamp Kabins on two sides. These cabins were continually filled with loud, rude people who have no clue what "campground ediquet" is. Twice, I had to walk down to the office to find the security after 11:30pm to have them come and tell the partiers to quiet down. These rude people left trash around like they were home and made the whole experience poor. Not to mention the bicycles, scooters and other toys used by the kids to entertain the parents all day long. Good park if you're not into peace and quiet and like kids running around all day; otherwise look somewhere else.
Ancient Redwoods RV Park is fairly new: three years old. The park is the quietest we've stayed in and the owners are great people. The sites are large and accommodate big rigs with ease. The park is still under construction so right now, there are no showers. The laundry facility is small but very clean. Wildlife still transit through the park and Avenue of the Giants is easily accessible. Go in late July and early August for wild blackberries: they're all over the place. If you want a quiet, reasonable, clean park with great owners, go to Ancient Redwoods. We'll be back again!!!