Japan 101: Celebrating Hadaka Matsuri
I was watching National Geography on Astro and there has a show on the Tokyo Shock Boys (who are a group of four highly energetic and wacky performers).
* The shock boys with shocking faces (Source: www.nms.ac.jp)
They would journey to participate and showcase four unique festivals in Japan. One of the eye popping one was the Hadaka Matsuri (or Naked Festival), where the Shock Boys tussled with 10,000 nearly naked men in loincloths to touch one naked holy man with the outside temperature at minus 2 degrees.