Fireflies of Iwayakawauchi River
Iwayakawauchi no Hotaru
A luminous display of fireflies dancing over the Iwayakawauchi River near the historic Ureshino Onsen.Explore this spot
The Iwayakawauchi River is a scenic waterway located in Ureshino City, Saga Prefecture.
What makes it special
About Fireflies of Iwayakawauchi River
- The best way to ensure a beautiful experience is to visit during the limited window from early to mid-June.
- Using the special viewing buses operated by certain ryokan allows for a much smoother and more comfortable viewing experience.
- We recommend planning a trip that combines the history of Ureshino Onsen with the natural beauty of the river.
- Since this is a nighttime activity, please wear bright-colored clothing and comfortable walking shoes.
Weather forecast
Tue
8/4
32°/26°
100%
Wed
8/5
35°/25°
54%
Thu
8/6
34°/26°
39%
Fri
8/7
33°/26°
39%
Sat
8/8
33°/25°
41%
Sun
8/9
33°/23°
48%
Mon
8/10
32°/23°
65%
Tips
Payment
Cash is often required for local facilities or bus services.
English Support
English signage and guidance may be limited; prepare information in advance.
Reservations
Viewing buses are typically reserved for guests of specific local inns; please confirm with your accommodation.
Clothing/Gear
Wear comfortable walking shoes as paths may be dark and uneven at night.
Photography
Please ensure you are in a permitted area when taking photos.
Accessibility
The riverbank area may have uneven terrain, which may limit mobility for wheelchairs.
Etiquette
Please be mindful of the environment to protect the firefly habitat and avoid disturbing the natural surroundings.