The bare bottomed bicyclist was part of the Sanja Matsuri, the biggest and wildest of Tokyo's festivals. Three of these portable shrines holding the remains of the 3 founders of the Buddhist temple are carried around the surrounding district for 14 hours, starting at 6am. They each weigh 2,000 pounds and it takes 40 people at a time to carry one, bouncing and shaking and chanting to bring good luck to the neighborhoods. (Sometimes they collide with shops along the way--not so lucky)

We were there in the morning and it was already a party, so I can imagine what it was like by 8 that evening when the parade finally ended.