You can see fantasy of many fireflies in Minakami.

Contact: Minakami Firefly Festival (Tsukiyono Firefly Village)
0278-62-0401
Access: 【By train】 from Tokyo station,,,Joetsu Shinkansen→Jomokogen Station(about 66mins)  →3 mins walk from the West exit
Viewing period is from middle of June to middle of July

Best viewing time is 20:00～21:00

Firefly walking course is 2km length and takes about 1 hour
Fireflies are sensitive to strong lights, please refrain from using torches or camera flash.
Please do not catch the fireflies. Please refrain from smoking.