Very secluded area on Lake Lanier
The largest waterfall in Georgia and the 3rd largest in the Southeast. They have paid camping and you can also hike the AT trail and find free remote camping.
As I was hiking Panther Creek to the base of the waterfall I saw 10-15 camp sites where you can camp for free, primitive style!
At the top of Linville Falls you can hammock camp on a Rock are within 50 feet of the Waterfall.