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Kanna Koinobori Festival

Manba, Kanna Town, Tano, Gunma

Venue: Kanna River riverbed (Koinobori Plaza area)

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

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.

800 koinobori across a mountain river gorge

Access

50 min from Honjo-Kodama IC (Kan-Etsu Expressway)

Hours

Open all day for viewing (stalls during main festival)

Admission

Free

KoinoboriGorgeRiver Crossing

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