At low tide a 30 m wide strip of sand emerges, reaching as far as Zōshima Island.
The three Sanshirō Islands (Zōshima, Nakanoshima and Takashima) are normally cut off from the shore, but the tidal range periodically links them with a strip of sand you can walk on: this is the tombolo phenomenon, designated a prefectural natural monument in September 1983. The bay cruises also go into the blue cave of Tenmadō, open at the top like a natural skylight.
Dōgashima is a stretch of jagged coast of white tuff rocks and islets, in the municipality of Nishiizu, and is one of the most photographed viewpoints on the west coast of the Izu Peninsula, especially at sunset against the outline of Tago Island.
ℹ️ The tombolo can be seen at the low-tide times published by the local tourist association; check them before going. The cave cruises run roughly between 10:00 and 16:00; pay car park on the national road or at the hot-spring hotel (1,000 yen). 15 minutes on foot from the Dōgashima bus stop.
🚉 Dogashima · in front of the station
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