01 / Miyauchi House (宮内家住宅)
Once, the water level in a moatwas used to watch the port's tides.

In Nadamachi, the Miyauchi House has four registered Tangible Cultural Properties: the main house, the old retirement house, the retirement lodge and the Shiomibori moat. The moat is a stone-lined pit about 1.5 m deep, which the national record calls a rare tide-gauge facility within a residence. The tourism site says it served as the headquarters of Ino Tadataka's survey team in 1808 and that its formal parlor survives as it was.
- 4 registered Tangible Cultural Properties (registered 2018)
- Shiomibori moat: about 1.5 m deep
- Survey team's headquarters in 1808 (tourism site)
