The third sector Yuri Kogen Railway, which runs in Yurihonjo City, Akita Prefecture, operates the "Koinobori Train" every year at this time of year. The passengers enjoyed watching and taking pictures of the koinobari swaying on the train.

Parents and children enjoyed coloring together. The train runs one round trip per day until Children's Day on the 5th of this month. It is decorated with colorful koinOBori inside the train to entertain passengers.