
Tazawa Lake Ryujin Festival Tazawa Lake Fireworks — large-scale Ryujin portable shrine and grand fireworks are the highlights
Lake Tazawa in Semboku City, Akita stages the Tazawako Ryujin Matsuri on July 25, 2026 — a festival praying for the lake's safety, good matches, and family harmony. From 20:00, about 300 fireworks rise over the famously still water in 30 minutes, with stage shows and the beach-running Ryuso Challenge earlier in the day.
The festival treats the lake as both stage and subject: a quiet stretch of water that doubles every burst of light. In 2026 the display runs from 20:00 to 20:30 on July 25 with roughly 300 shells — a modest count that suits the contemplative setting — and an expected crowd of about 4,000. Daytime programming, including the quirky Ryuso Challenge beach run, fills the hours before dark. Access leans on the bus: about 12 minutes from JR Tazawako Station toward Nyuto Onsen, alighting at the Kohan stop for a 3-minute walk. Drivers reach the lake in about 60 minutes from Morioka IC and can use the free 260-space lot at the Tazawako Rest House. The festival posts updates on its Facebook page, worth a glance before departure. Bring a light jacket — the mountain lakeshore cools quickly after sunset.