This famous Japanese festival is held every 6 years in the Lake Suwa. Onbashira means “the honored pillars” and consists of two parts: Yamadashi that takes place in April and Satobiki that is celebrated in May. Men prepare for the first part by cutting down huge trees that will be used as logs later on. During Yamadashi, participants have to drag these logs down the mountain. Young guys show how brave they are in “Ki-otoshi” ceremony by riding the tree poles on the slope. It’s rather spectacular.