murmurIsahaya Mando River Festival
Isahaya City · Banks of the Honmyo River (ceremony at Takashiro Bridge)
Dates and details can change. Always check the official website before you go.
Nagasaki Prefectural Tourism Association (Nagasaki Tabinet) · Last checked: Oct 10, 2026
Dates
Dates confirmed with official sources
- 2026
- Sat, Jul 25, 2026 （Ended） Ceremony and lantern lighting at 20:00; fireworks from 20:30
- 2027
- Dates have not been announced yet. Please check the official website.
- Usual timing
- Usually late July
- How the date is set
- Every year on July 25 Postponed in case of rain
- Venue
- Banks of the Honmyo River (ceremony at Takashiro Bridge)
- City
- Isahaya City, Nagasaki
About
On the night of July 25 each year, some 20,000 lanterns float on the Honmyo River in Isahaya. The festival mourns the 630 people who died in the Isahaya flood of July 25, 1957, and carries a wish for a safe and beautiful city. When the lanterns are lit at the 20:00 ceremony, the whole river shimmers with gentle light. Fireworks then join in, and together with the illuminated Spectacles Bridge, three kinds of light combine into one evening scene. Donations toward the lanterns are welcomed. The riverside is about 15 minutes on foot from JR Isahaya Station, or about 5 minutes from Hon-Isahaya Station on the Shimabara Railway. If it rains, the festival is postponed. It is organized by the city, the chamber of commerce and the local tourism association.
Sources
- OfficialNagasaki Prefectural Tourism Association (Nagasaki Tabinet) www.nagasaki-tabinet.com
- OfficialIsahaya City www.city.isahaya.nagasaki.jp
Last checked: Oct 10, 2026. Event information is based on official announcements, but changes may not always be reflected here. Please check each official website for accurate details.
Other events this month
On the day, see what locals are murmuring on the murmur map
murmur is an app that shows short, anonymous posts on a map, right where they were written. On festival day, open the map around the venue and see what people nearby are saying.