Boat-in camping at Diablo lake in Washington. You will need permits for these which you can get from the local ranger station. First come first serve basis. Along with Thunder Point (3), there are two more sites Buster Brown (3) and Hidden cove (1) that you can go around too. All together 7 available campsites in the three spots. Its one of the most beautiful spots I have camped in. Don't forget to check out the night sky when you are there!!