Firefly viewing at Hakoshima
The spring water at Hakoshima falls as a waterfall. Downstream, the Narusawa River is well known as a habitat for fireflies. Hakoshima Hotaru no Sato is carefully looked after by local people and the firefly protection group.
Best viewing
Mid-June through late July.
When they fly — tips for watching
They begin to glow from about 8:00 p.m. The peak is about 8:15 to 8:45 p.m. Still nights with no moon are especially good. On rainy or chilly evenings there is said to be little activity.
Place and parking
Hakoshima, Higashiagatsuma Town, Agatsuma District, Gunma. Inquiries: Higashiagatsuma Town Tourism Association, +81 279-70-2110. Parking for 50 cars, free, lots 1–3.
Please keep the manners and rules, so the viewing stays quiet.
Nakanojo Town, also in Agatsuma District, has Nakanojo Gardens for a daytime stop. Places closer to the inn are on the Sightseeing page.