According to a report by the UK's Daily Mail on the 15th, an extreme sport called "naked rock climbing" is sweeping through the US and UK. Climbers scale cliffs without any ropes or equipment and do so completely naked.
"Naked rock climbing" was conceived by Dean, a California-based photographer and rock climbing enthusiast. He describes the activity as the "purest form of sport." He has turned his photography into a 2009 "Naked Rock Climbing" calendar, which is currently on sale on his personal website.