An annual tradition at Porter College, UC Santa Cruz. The first night-time rain that graces Santa Cruz after the beginning of the school year will bring a huge group of free spirits out of their dorm rooms and out of their clothes into the falling water. After running around the quad for a while, calling to the spectators "Join us!", the naked group will embark on a jogging parade through campus, visiting every dorm in the university. By the time it returns to Porter, the group has doubled in size from all the nudist recruits it picked up along the way.

You wish you could see pictures, don't you? Your wish is my command:

I appear in a number of the pics, notably bare-bottomed in number 13 with hands raised to receive the falling rain gems.