Dynamic underwater landscape formaed by the underwater valcano 

Izu Oshima is located at 120km south of Tokyo. You can take the 2hour fast ferry or fly 40min to this Island. As the Black current from the south hit's the Island directly, the visibility is good all year round.
Diving in Izu Oshima is 100% conducted in beach-entry style and the most famous beach spot would be, "Akinohama".
You can giant stride into the ocean and use a ladder to exit. The point offeres shallow water areas and also you can follow the reef to the deep wates as well.