2026 5th Oshu Fireworks Display: A Full One-Day Course

A one-day course centered on the 5th Oshu Fireworks Display, starting at 7:00 PM on Saturday, August 22, 2026, letting you enjoy a full day at the mountain-set Isawa Dam. At midday, get an up-close look at the grand scale of the rockfill dam, one of the largest of its kind in Japan, from the Isawa Dam observation plaza. After visiting Ishibuchi Dam Plaza, which conveys the history of the former dam that was submerged, learn about the dam's mechanisms and the region's nature at the Oshu Lake Exchange Hall. In the evening, have an early dinner at a farmhouse restaurant, secure your spot at the venue, and enjoy the time as the dam lake glows with the sunset colors. At 7:00 PM, fireworks burst into the night sky over the dam lake surrounded by mountains, building to a powerful finale with echoing sound. This is the definitive summer Oshu plan, packing in both a dam tour and fireworks in the mountains.