Fukagawa Hachimangu Matsuri an annual festival of Tomioka Hachimangu Shrine is one of the Tokyo's Big Three, along with the Asakusa Sanja Matsuri and the Kanda Matsuri. The festival is also called "Mizukake Matsuri" literally means water-throwing festival. Pouring water to mikoshi (portable shrines) carries and participants.
The highlights of the festival is the 54 mikoshi or portable shrine will parade in the main street by townspeople wearing happi coats while shouting “WASSHOI! WASSHOI!” from 7:30 a.m. to 3:30 pm.
The "Mizukake Matsuri" (water-throwing festival) is held once every three years in mid-August and brings an estimated 300,000 visitors.
Tomioka Hachiman Shrine was Established in 1627, is the largest Hachiman Shrine in Tokyo and also well-known for having a diamonds, rubies, jewels and gold decorated two portable shrines.