Nagatoro Funatama Festival (長瀞船玉まつり), near Iwadatami, Nagatoro, Chichibu District, Saitama Prefecture

Flow of the course

About this spot

Held on the Arakawa River around Iwadatami in Nagatoro from 17:10 to 20:45 on August 15, 2026, this traditional event honors those lost to the river and prays for safety on the water. As night falls, countless lanterns are set afloat on the river, and the band of light emerging from the darkness creates a fantastical scene unique to Nagatoro, surrounded by the Arakawa River and mountains. A festival long carried on by the local community, it offers a chance for quiet prayer alongside the cool air of a summer night by the river.

Festival details

Tips

The riverside becomes hard to see underfoot at night, so a flashlight or smartphone light is reassuring to have. Temperatures can drop after dark, so bring a light layer to put on. Crowds are expected, so hold your child's hand while moving around.

Best time to visit

From the 17:10 start. The most magical time is after 18:30, once it's fully dark and the lanterns glow on the water.

Access & map

埼玉県 秩父郡長瀞町・長瀞岩畳周辺