Secret beach, accessible by cave tunnel only (or boat of course), Zamami Island, southern Japan
Zamami Island, Okinawa, Japan
Zamami Island belongs to the Kerama Island group which is known for some of the world's clearest waters with 50-60m visibility.
The islands of Okinawa Prefecture including the Kerama Islands are known as one of the world's best diving destinations, having a number of coral species and marine lives as large as those in the Great Barrier Reef. Over 400 types of corals, 5 types of sea turtles, manta rays, whale sharks and many kinds of tropical fish species all live around the islands of Okinawa Prefecture.
For our recommended islands of Japan, please check out: