Known as one of the three great festivals of Edo (along with the Sanno and Kanda festivals), the matsuri at Fukagawa’s Tomioka Hachimangu shrine takes place annually, but is celebrated in its full glory only once every three years.
The festival, which boasts 380 years of history, is well known for its unique water-splashing tradition. People enthusiastically throw water at the mikoshi (portable shrines) as an act of purification, drenching everyone in the vicinity, thus creating a playful and cooling experience, especially in the summer heat.
This year, you can expect the real deal with the main version of the festival taking place in 2026. The main event, featuring mikoshi processions held on a grand scale, features over 50 portable shrines of various sizes and will be held from 7.30am on Sunday August 16. Expect to get soaked with plenty of water splashing this year.
The festivities in the shrine grounds begin on August 12 and continue until August 16, with notable highlights including a jazz performance on August 15 (3pm) and a koto and shamisen performance on August 14 (from 3pm).
For more information including the festival schedule and procession map (Japanese only), check the shrine website.





























































