"Nudism Throughout the World" is a "first-hand account of the Naturist movement from the point-of-view of a practicing nudist." Ray Romaine, basically a nudist anthropologist, shares the squeaky clean story of nudism in the February 1961 issue of "Sexology" magazine. After all, as stated by the International Naturist Federation, "where nakedness is a practical necessity, it is accepted as a natural, but it is never used as a means of sexual provocation." So get your mind out of the gutter!
The last picture really, really makes us want to go camping—clothes or no clothes. But probably with clothes because the mosquitoes just love us and we don't want OFF in our girl parts.
Find the rest of the article (and a few more pictures) at ModernMechanix.