Federal Lands
well i have talked to several rangers in georgia and they had no problem arresting folks that they caught nude of course they were more interested in the perv's. i think it is the descreation of the district manager . i've been to apollo beach at canaveral and it is acceptable but the got a new park manager and so far so good but who know when they will change their minds. one thing interesting about apollo is there are five parking areas to the beach the last one is the nude area and needless to say when you past the first four they are vacant or maybe one or two cars and at the fifth it is packed.
We have camped nude on Lake Powell in Utah and were hassled by the Park Rangers. We argued with them on several occasions re: our nudity. They finally capitulated and said that it is not illegal on BLM land but if we were all caught doing anything that they considered lewd, the local sheriff would arrest us. Since the Feds have the jurisdiction, they are the ones that have to push the envelope and call the local law enforcement.
As far as I'm aware, there's no law against nudity in any Federal State Park.
Of course I mean nudity. Any other sexually disruptive behavior will get youa ride in the "Party Wagon".
The rule of thumb is to keep something with you to cover up promptly if there are other people passing by or if someone complaints about it and the Ranger will let you slide for as long as I mentioned before it was just plain nudity and nothing else.
If the people passing/camping by don't care or don't make a big deal of it, well more power to you :)
Have a great day and stay nude :-)
Hawk
Everglades National Park rangers have been totally okay with my summertime nudity there. Summer is their off-season though. I am often the only party camping in the park when I get my permit, so i get my choice of all the campsites.
They might not be as accepting during their peak season when all the campsites are filled and lots of boats are on the water.