Japanese Children's Day is a national holiday which falls on May 5.
It is a day set aside to respect children's personalities and to celebrate their happiness.
On this day, families customary raise the carp-shaped colorful banners at their home.
Local government in Tochigi city displays Uzuma river with about one thousand banners on the day since 2006.
We went to the river in this season for the first time and enjoyed seeing the display.