Last updated: March 11, 2021
A testament of the beautiful environment of Gunma
Genji and Heike fireflies can be seen near Narusawa River at the lower reaches of Hakojima Yusui each year from mid-June through late July thanks to the conservation efforts of local residents.
Hakojima, Higashiagatsuma, Agatsuma District ( Map)
About 20 minutes on foot from Onogami Station
About 25 minutes by car from Shibukawa-Ikaho IC of Kan-Etsu Expressway
Mid-June to mid-July
