2026 Nakasendo & Nakatsugawa Oiden Festival Fireworks Display: A Full-Day Course

This full-day course centers on the Nakasendo/Nakatsugawa Oiden Festival Cool Evening Fireworks Display (中山道・中津川おいでん祭納涼花火大会), held on Wednesday, August 12, 2026, in Nakatsugawa City, Gifu Prefecture. At midday, walk the streets of Nakatsugawa-juku (中津川宿), which flourished as a post town on the Nakasendo, then head to Naegi Castle Ruins (苗木城跡), famed as the castle in the sky. Enjoy the spectacular view of the Kiso River and the mountains from atop the stone walls. In the afternoon, learn about the post town's history at the Nakasendo History Museum (中山道歴史資料館), and in the evening take a break with the famous kuri kinton (chestnut confection) at the Nigiwai Plaza (にぎわいプラザ) in front of JR Nakatsugawa Station. As dusk falls, the area around the venue fills with spectators, and fireworks are launched into the night sky. Packed generously with a tour of the post town and the castle in the sky, plus fireworks in the night sky, this is a full-day plan fitting for the close of summer in Nakatsugawa City.