Hotel Iya Onsen Open-Air Baths ホテル祖谷温泉

Hotel Iyaonsen features an open-air bath situated at the bottom of the Iya Valley. Guests access this bath via a cable car, which descends a 42-degree slope over approximately five minutes. The bath uses free-flowing hot spring water, rich in alkaline components, which is said to be good for the skin.

Source: iyaonsen.co.jp ↗, read 2026-09-11