Kanna Koinobori Festival

Apr 26 – May 10, 2026 (main fest May 3–5) (est.)

Kanna River riverbed (Koinobori Plaza area)

Manba, Kanna Town, Tano, GunmaKanto

Check Official Site

HIGHLIGHTS

800 koinobori across a mountain river gorge

About This Event

One of the Kanto region's most spectacular koinobori festivals, held in the Kanna River gorge in Kanna Town, Gunma Prefecture. Approximately 800 colorful koinobori are strung on wires across the clear Kanna River, creating a breathtaking scene against the backdrop of fresh green mountains. During the Golden Week main event, visitors can enjoy local specialties including grilled sweetfish and mountain vegetable tempura from festival stalls. This is the highlight spring event for this small mountain town.

KoinoboriGorgeRiver Crossing

Event Information

Dates: Apr 26 – May 10, 2026 (main fest May 3–5) (est.)
Hours: Open all day for viewing (stalls during main festival)
Admission: Free
Venue: Kanna River riverbed (Koinobori Plaza area)
Location: Manba, Kanna Town, Tano, Gunma
Access: 50 min from Honjo-Kodama IC (Kan-Etsu Expressway)
Date source: Officially announced datesListed based on official announcements.