Not all the good ideas start here in the USA - here's one from the country where the naturist movement got its start with the FKK or "Free Body Culture" tradition of the early 1900s - Germany.
http://uk.reuters.com/article/email/idUKTRE58L2NJ20090922
A couple of snippets from the Reuters article:
Tue Sep 22, 2009 2:56pm BST
BERLIN (Reuters Life!)
German naturists will soon have their own 18-km (11-mile) long trail for hiking in the nude and some enthusiasts have been trying it out before the official opening next May.
...
"I think it's a great way to promote tourism here," Ludwig told Reuters on Tuesday after Bild newspaper published a picture of two women wearing nothing but rucksacks on the trail. "There's already been a lot of interest in it."
...
The trail is being marked with special signs warning the uninitiated that they could encounter nude hikers.
More on the FKK tradition:
http://en.wikipedia.org/wiki/Freik%C3%B6rperkultur