Dogashima and Tensodo Cave
In Japanese: 堂ヶ島天窓洞
A sea cave in white tuff on the west coast of Izu, with a hole in its roof. Small boats sail into it, and a path lets you look down from above.
Natural Monument (Tensodo); Izu Peninsula Geopark
Too crowded? Similar but quieter: Ryugukutsu Sea Cave
Nearby
- Cape Koganezaki ≈ 25 min by car
- Kawazu Seven Waterfalls ≈ 40 min by car
- Joren Falls ≈ 45 min by car
- Cape Irozaki ≈ 50 min by car
- Ryugukutsu Sea Cave ≈ 50 min by car
Travel times are rough estimates by car.
- Getting there
- Tokai Bus from Shuzenji Sta. to Dogashima stop
- Fee
- Cave boat from 1,500 yen (children from 750 yen); viewing from the path is free
- Good to know
- Boats run 10:00–16:00 and depend on sea conditions
- Time needed
- 1 h
Checked against the official Japanese website on 2026-10-12. Report outdated info