Knowing physics and centrifugal force (YAY! I used a BIG WORD!) on vital intimate parts....I'm not sure I'd want to attempt a roller coaster naked, but 195 people did in Britain and now own a World Record.
195 British naturalists invaded Blackpool Pleasure Beach amusement park on Saturday to accomplish what no one has done, by riding together naked around the twist and turns of the park’s famous Grand National roller coaster. The event was organized by national U.K. organization British Naturism and was open to the public to join, according to Fox News.
There's no word on if the park was closed for the "private" event or not. It seems like it could be fun and entertaining..... if you weren't behind the woman with the flap jack breasts! "COME ON KAREN!! Can you tie those things down or something!?"