Firefly Festival at Yotsusawagawa Sabo Park

Fuefuki City · Yotsusawagawa Sabo Park, next to Yatsushiro Furusato Park

Dates and details can change. Always check the official website before you go.

Check dates on the official website ↗

Yamanashi Tourism Organization · Last checked: Oct 11, 2026

Dates

Dates confirmed with official sources

2026
Jun 13–21, 2026 (Ended)
Fireflies are at their best from 8 pm to 9 pm
2027
Dates have not been announced yet. Please check the official website.
Usual timing
Usually mid June
How the date is set
Changes from year to year
Dates are set each year to match the firefly season
Venue
Yotsusawagawa Sabo Park, next to Yatsushiro Furusato Park
City
Fuefuki City, Yamanashi

About

Yotsuzawagawa Erosion Control Park in Yatsushiro, Fuefuki, holds a firefly festival for a short season in early summer. Next to Yatsushiro Furusato Park, the park has a firefly channel about 1 km long that local residents have carefully tended and protected, and the soft lights of the fireflies drift above it. A slow walk along the water at night makes for a lovely moment with family or friends. Viewing is best from about 20:00 to 21:00. Cars park at the Linear Observatory lot; buses and other large vehicles use the Yatsushiro Furusato Park lot. It is about 10 minutes by car from the Fuefuki-Yatsushiro Smart Interchange on the Chuo Expressway.

Sources

Last checked: Oct 11, 2026. Event information is based on official announcements, but changes may not always be reflected here. Please check each official website for accurate details.

Other events this month

On the day, see what locals are murmuring on the murmur map

murmur is an app that shows short, anonymous posts on a map, right where they were written. On festival day, open the map around the venue and see what people nearby are saying.

Download on the App Store Android (Google Play): coming soon