Mountain Men Encampment
If you have never gone to a rendezvous, I really encourage you to go. It is better than Halloween or a costume party.
Everyone has to wear 1800 clothing and your camp has to be 1800, too. No modern camping, but the "Mountain Men" actually camp more comfortably and are very creative in hiding modern day conveniences, such as coolers (inside wood boxes), etc.
It is a lot of fun, and of course you always come home to electricity and running water!