Hakusan Domon Sea Arch
In Japanese: 白山洞門
A granite sea arch 16 m high and 17 m wide on the coast of Cape Ashizuri, one of the largest in Japan. Still being carved by the waves, it can be seen up close from a walking path.
Kochi Prefecture Natural Monument
Nearby
- Cape Ashizuri ≈ 10 min by car
- Tojin-daba Megalith Site ≈ 15 min by car
- Tatsukushi and Minokoshi Coast ≈ 40 min by car
- Irino Beach (Sunahama Museum) ≈ 1 h 15 min by car
- Shimanto River Chinkabashi (Submersible Bridges) ≈ 1 h 15 min by car
Travel times are rough estimates by car.
- Getting there
- Kochi Seinan Kotsu bus to the shrine stop at Cape Ashizuri (白皇神社前), then about 5 min walk
Few buses — check times or join a tour - Fee
- Free
- Good to know
- Open all year. Free parking (20 cars)
- Time needed
- 40 min
Checked against the official Japanese website on 2026-10-15. Report outdated info