In the past, the Agatsuma region actively used the river as a transportation route for goods. In the forestry industry, lumber was cut down, rafted, and sent to Edo via the Agatsuma River. Also, in 1854, three boat docks in Haramachi, Yamada, and Iwai started water transportation to move agricultural products and other goods. River crossings were inevitably necessary for this operation. In the days when there were no elevated bridges, one had to descend to the bottom of a deep valley to cross a bridge. However, the bridge was washed away every time the water rose. In this work, I assumed that a palanquin that floats on a kite was devised as a way to cross the river without hindrance.