This campground is amazing!

 It is a small campground right next to the Boundary Dam and thanks to Seattle City Power is absolutely FREE! It just went through a major overhaul so everything is new and well maintained.  Lots of history here including the filming of The Postman.

They provide you with great amenities like full flush bathrooms, extensive day use facilities, Boat launch and dock, Water and trash. It has 22 sites(3 of which are ADA) and 12 RV sites. There are no hookups for the RV's. Each site has a fire pit picnic table and gravel tent pads.

There are many things to do here like check out the Peewee falls which is only viewable by water or take the free dam tour! A short drive away is the Gardner Caves which offers free guided tours if you have a discovery pass. Metaline Falls is also a short drive away in which there are a few eateries and even a movie theater.

Overall it is a great place to camp and boat, my only fault would be the 6 day limit! 

I highly recommend checking this place out if you have a chance.