01 / Ōidani Rice Terraces
Every household in Ōidani formed the Sukehandō Association,which still keeps the terraces alive today.

Old records called the Yoshikaki say the Ōidani terraces were built by the Miura clan, retainers of the Ōuchi clan, who settled here from the late Muromachi period into the Edo period, roughly 600 years ago. In 1998, every household in Ōidani joined to form the Sukehandō ("helping hands") Association, working to keep the terraces alive.
- Said to date back roughly 600 years (the Yoshikaki)
- 1998: Sukehandō Association formed by every household
- Listed among Japan's 100 Best Terraced Rice Fields