Nanatsugama Sea Caves
In Japanese: 七ツ釜
Seven caves carved side by side into basalt cliffs by Genkai Sea waves, up to 110 m deep; tour boats from Yobuko enter them when the sea is calm.
Natural Monument
Nearby
- Yobuko Morning Market ≈ 15 min by car
- Hizen Nagoya Castle Ruins ≈ 20 min by car
- Cape Hado ≈ 25 min by car
- Hamanoura Rice Terraces ≈ 30 min by car
- Former Takatori Residence ≈ 30 min by car
Travel times are rough estimates by car.
- Getting there
- About 20 min by taxi from JR Karatsu Station; or sightseeing boat from Yobuko Port
Easier with a tour or car - Fee
- Free (boat 'Ikamaru': adults 2,000 yen, children 1,000 yen)
- Good to know
- Boats leave Yobuko hourly 9:30-16:30 (about 40 min); cancelled in rough weather
- Time needed
- 1 h
Checked against the official Japanese website on 2026-10-12. Report outdated info