Canals in Yanagawa[Q@@QOOSDS
Many houses have small steps to the canal.

The exscarsion boat goes through wide channels. They were innner and outer moats of the castle in the past.
Tidal range of Ariake See which is besides Yanagawa Town is much. Many gates control the water level of the canal.
Some houses along the canals have beautiful gardens. Tourlists can view them from the boat.