South Dogashima Coast

Western Izu

Volcaniclastic flow and pumice stone of a submarine volcano; an open sea cave The cliffs of Dogashi...

Geosite　Submarine Volcano　Key site　Strata　

Ryugu Sea Cave

Southern Izu

Skylight window of a sea cave; a subaqueous fallout scoria, a pothole The Ryugu Cave is a large ope...

Geosite　Submarine Volcano　Key site　Strata　

Issiki

Western Izu

Pillow lava and magmatic dykes of the Nishina group Most of the Nishina group of soil strata, which...

Geosite　Submarine Volcano　Key site　

Muroiwado abandoned quarry

Western Izu

Pumice stone and lava flow of a submarine volcano, ruins of a quarry The volcanic ash that accumula...

Geosite　Culture&History　Submarine Volcano　Living with the Earth　Key site　Strata　

Koura 33 Kannons

Southern Izu

Volcanic products of submarine volcanoes and stone statues of the Buddha If you walk about 5 minute...

Geosite　Biodiversity　Culture&History　Submarine Volcano　

West Tsumekizaki

Southern Izu

Sills and columnar joints On the coast of West Tsumekizaki, tourists can enjoy the magnificent colu...

Geosite　Submarine Volcano　Columnar joints　

Shimoshiraiwa

Central Izu

Calcareous sandstone Shimoshiraiwa is a large calcareous rock which yields many fossils of small ma...

Geosite　Submarine Volcano　

Mt. Eboshiyama

Western Izu

View of the volcanic neck and its surroundings Mt. Eboshiyama is a volcanic neck rising over 160 m....

Geosite　Culture&History　Submarine Volcano　Lookout　Columnar joints　

Senganmon Rocks

Western Izu

Cross-section of a submarine volcano The Senganmon Rocks are a part of a volcanic neck, and the ‘ga...

Geosite　Culture&History　Submarine Volcano　

Futo Coast

Western Izu

Magmatic dykes Futo Coast offers the visitor a breathtaking sight of magmatic dykes (volcanic necks...

Geosite　Submarine Volcano　Columnar joints