A short film called "But Charlie I Never Played Volleyball!" featuring a nude beauty contest scene filmed at Freddy Gordon's Spartan's Nature Camp. Unfortunately no full frontal shots but plenty of big tits and bums to enjoy. Not sure if this was an actual contest or just shot for the film, but I do like how they had male chaperones for the women.
http://www117.zippyshare.com/v/cxlYlXHq/file.html