Wikipedia
Nudes-A-Poppin'
Nudes-A-Poppin (abbreviated NAP) is an annual pageant in the United States for nude women and men competing in erotic dance. It is the most well-known nude event in Indiana. The pageant has been held annually since it was started in the mid-1970s. The event is organized by Ponderosa Sun Club, a family nudist resort situated in Roselawn, Indiana, and serves as a fund-raiser for the resort. The resort is closed to its members during the pageant, and the one-day event tickets can only be purchased separately. Up to 2003 there was one event in July and another in August, but from 2004 this was reduced to one weekend in July.