The 2026 “Kobo Daishi Dedication Fireworks Festival” will be held on Friday, August 21!!
2026 “Kobo Daishi Dedication Fireworks Festival” — Friday, August 21
Monday, August 21, 2026: “Kobo Daishi Dedication Fireworks Festival”
*In case of rain: held in light rain; postponed to the following day in severe weather
Location: Shuzenji Onsen town
Launch time: 20:15–20:45 (scheduled)
Giant blossoms of light blooming across the night sky above the Onsen town.
Known locally and fondly as “O-Kobo-san,” this fireworks festival is dedicated to soothing the spirit of Kobo Daishi.
Shuzenji Onsen traces its origins back about 1,200 years to a legend in which Kobo Daishi visited the area and saw a boy washing his sick father with water from the Katsura River. Saying, “The river water must be cold,” he struck a rock in the river with a Buddhist ritual implement called a tokko, causing hot spring water to gush forth.
The fireworks illuminate the sky over the Onsen town and thunder through the surrounding mountains. The finale features an approximately 70-meter Niagara display set over the Katsura River—a beautiful cascade of light that draws spectators into a mystical world.




















