Kosai

This important travel checkpoint on the Tokaido highway was established in 1600 by Ieyasu Tokugawa, and is the only surviving original building of such a checkpoint. The checkpoint enforced strict regulations to keep guns out of Totomi precinct, and to keep women in. The archives hall next door contains old checkpoint records.

The main hall is designated as a National Important Cultural Property. There is also a park here, a nice place to picnic.

One of Japan's only venues to watch boat racing.