
The Kawanakajima Old Battlefield Festival closes with a grand fireworks display on October 10, 2026, from 6:00 p.m. at the historic park on the storied riverside plain north of central Nagano City. About 3,000 shells rise over ground where samurai armies famously clashed — bursts reflected among centuries-old monuments. Paid seating, food stalls, and festival parking are arranged by the executive committee.
Few fireworks venues carry history like Kawanakajima: the riverside plain north of central Nagano City where rival samurai armies met in some of Japan's most chronicled battles. Today a historic park preserves the ground, and on October 10, 2026 its festival concludes with a grand fireworks display from 6:00 p.m. — roughly 3,000 shells over the old battlefield. The contrast is the draw: bursts blooming over monuments and pines that predate them by centuries. Paid seating structures the main viewing area, food stalls serve the park, and festival parking is arranged. The executive committee's official page posts the event details. Mid-October in the Nagano basin means genuine autumn chill at night; prepare accordingly. The 6:00 p.m. start leaves daylight for touring the battlefield monuments first.
About 3,000 shells over Japan's most storied samurai battlefield, Kawanakajima.