Japón
The largest island of the Ryukyu chain, with shore and boat diving along its fringing coral reefs, the famous Blue Cave at Cape Maeda and World War II wrecks such as USS Emmons.
Okinawa Island is the largest and most populous island of Okinawa Prefecture, about 106 km long, with the capital Naha in the south. Dive centres along the coast offer shore and boat diving on fringing coral reefs, and the island is the usual base for day trips to the nearby Kerama Islands. Its best-known site is the Blue Cave of Cape Maeda on the west coast, a partially submerged cave where sunlight entering through the underwater opening makes the surface glow blue. The waters around Okinawa also hold World War II wrecks; the destroyer USS Emmons off the main island is a popular wreck dive. Water temperatures range from about 21.5 to 28.6 °C. The rainy season runs from May to June and typhoons are a risk from August to October, while northerly winds can make winter boat rides cold. Source: Wikipedia, JNTO, Visit Okinawa Japan