This article is intended to provide the already qualified Scuba diver with information which will help to plan dives in the waters of Japan, whether as a local resident or a visitor. Information is provided without prejudice, and is not guaranteed accurate or complete. Use it at your own risk.

Understand

Coral reefs on Ishigaki, Japan

Japan is a country made up of a large number of islands spread over a large range of latitudes, so that dive sites range from cold temperate in the far north to tropical in the far south.

Diving in Honshu:

• Izu Peninsula in Shizuoka prefecture is a popular destination for mainland Japan diving. The East Coast of Atami is most popular with dive operators for its accessibility and infrastructure, while the West Coast's sites are largely unspoiled, safeguarded from weekend crowds by its remoteness and lack of train stations.

Diving in Okinawa:

• The southern islands of Okinawa have great diving, but prices are steep: you can expect to pay upwards of $100 for two dives.

Diving in the Miyako Islands:

Diving in the Yaeyama Islands:

• On Yonaguni-Jima, the westernmost point of Japan: — Manta rays, hammerheads (mainly from February) and mysterious underwater ruins.