Streaking at the South Pole isn’t an activity to be taken lightly. And it’s not something you do on a whim, after one too many shots of whiskey at Club 90 South. On the contrary, getting naked in Antarctica is a hallowed tradition that requires planning and teamwork.

The objective: to endure a temperature swing of 300 degrees Fahrenheit by warming up in a sauna, heated to 200 degrees, and then running, naked, to and around the Ceremonial South Pole when the outdoor temperature is below -100 degrees. The select few who have participated in this rite belong to an exclusive group: the 300 Club.

When Kris Perry, who lives and works in Alaska now, did the 300 challenge for the first time, he walked right past the pole.

Perry remembers one unlucky couple from his second winter at the South Pole: “[They] both suffered some minor frostbite—she on her nipples and he on the tip of his weenie.”

Via The Atlantic for the full cool story.