The Polar Plunge is a charity event in which people collect donations for whatever (usually special olympics) and then run into freezing cold water. It was 26ºF when we went in this morning and the water was a little below 50ºF. It was cold. Worth it, but cold. My group dressed in Doctor Who costumes and shouted "Geronimo!" as we ran in. Then we all took cover in the TARDIS. I have a video and stuff on my Facebook.