Koinobori Festival, or Carp Streamer Festival, is held in Kanna-machi, Tano-gun, Gunma Prefecture. From the late April through the early May, about 800 carp streamers are flying along the upstream of the Kanna River. The festival was first held in 1981 by the local people bringing their family’s carp streamers. It is said to be the trailblazer of the festivals of this kind, which can be seen many places in the country now.

As many as 30,000 people from all over the country come to see this overwhelming scenery. From May 3rd to 5th, a lot of events including the fair for local vegetables and products, Japanese drum performance, various street performances are held on the river bank. Visitors can also enjoy a river cruise on carp-shaped rafts. It’s a refreshing and enjoyable summer event.