Otaimatsu' had originally divined the good or bad harvest of rice. 7 meters tall three torches come into flames and lighten the spring night sky. You can see it so close as to be showered with sparks!
Seiryo-ji Temple (Saga Shaka-do) Guide
Otaimatsu' is held on 3/15 every year and starts around 20:00. On the same day, 'Nehan-e' (15:00~) and 'Saga Dainenbutsu-kyogen' (15:30~) are also carried out. You can see them for free.