Dogashima Sea Caves
A dramatic coastline of eroded tuff stone cliffs, sea caves, and stacks — the Izu Peninsula's most scenic shore. Boat tours enter the Tensei Cave, a collapsed cave with a sky-light hole in the ceiling through which sunlight pours in. The turquoise water and white rock faces resemble the Amalfi Coast.
2–3 hours
Boat tour ¥1,500 (adults), ¥750 (children)
Boat tours: 10:00–16:00 (weather permitting); may close in rough weather
Year-round (avoid typhoon season Aug–Sep)
Bus from Shuzenji Station (75 min)
Location
Why Visit
- 1
The Tensei Cave's skylight hole creates a pillar of light on the water inside — photos are extraordinary
- 2
Boat tours through the cave network take about 20 minutes and run year-round
- 3
The coastline north of Dogashima has completely deserted coves accessible only by boat
Local Tips
The glass-bottomed boat enters a cave with a natural skylight — best on a sunny morning when light pours through from above. The tour lasts about 20 minutes; combine with the Dogashima coast walk. Izu Peninsula rewards 2 days — add Shuzenji or Kawazu waterfalls in the same trip.
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