Chiiwa Gorge
In Japanese: 乳岩・乳岩峡
A 3 km gorge of flat riverbed rock and potholes. Further in is Chiiwa, a cave whose ceiling bears breast-shaped stalactites, and a natural stone arch near the summit.
National Natural Monument and Place of Scenic Beauty
Nearby
- Yotsuya Senmaida Rice Terraces ≈ 45 min by car
- Mount Horaiji and Horaiji Temple ≈ 45 min by car
- Adera Seven Falls ≈ 45 min by car
- Chausuyama Highlands ≈ 50 min by car
- Ryotanji Temple ≈ 55 min by car
Travel times are rough estimates by car.
- Getting there
- About 30 min walk from Mikawa-Kawai Station (JR Iida Line) to the trailhead
- Good to know
- The loop from the trailhead takes about 1 hr; rough footing, so wear hiking shoes; no mobile signal in places. Part of the access road is closed to cars (park at Yuya-onsen and take the train)
- Time needed
- 2 h 30 min
Checked against the official Japanese website on 2026-10-15. Report outdated info