大井川
Kanaya-juku was built up on the right bank of the Ōi River across from Shimada-juku. There were over 1,000 buildings in the post town, including three "honjin", one sub-"honjin" and 51 "hatago". Travelers had an easy travel to Nissaka-shuku, which was about away. However, whenever the river's banks overflowed, travelers were not able to pass through Kanaya and on to Shimada-juku, as the Tokugawa shogunate had expressly forbidden the construction of any bridge on the Ōi River.