Tombolo Sand Bar
Nishiizu Geosites: Timeless Coastal Landscapes
The Tombolo of Dogashima is a rare natural phenomenon that appears only at low tide. As the sea gently recedes, a sandy land bridge emerges, connecting the mainland to Sanshirojima Island. Located about 200 meters offshore, this group of four small islands becomes accessible on foot from spring through early autumn. During these seasonal low tides, visitors can experience the unique sensation of walking across the sea to reach the islands.
Shanshiro Island and Tombolo
Tombolo
Tombolo
Dogashima - Suruga Bay
Dogashima - Shanshiro Island
Tidal Pools
What is the Tombolo?
Sculpted by Time: White Volcanic Ash Layers
It is a rare phenomenon in Japan- usually islands are surrounded by the sea, but at low tide, the water retreats, revealing a bridge that was hidden beneath the waters. This only appears in a limited number of terrains and it is said that this phenomenon only occurs in less than 10 places throughout Japan.
Sanshiro Island and Tombolo
It is possible to walk to the islands.
Explore the Natural Geosites of Nishiizu
When the tombolo phenomenon occurs, you can walk to the Sanshirojima Island. It usually takes about 15 minutes from the mainland to the island. You can also find “tidal pools” on the rocky shores that are perfect for playing with family and friends.
