Top Snorkeling and Scuba Diving in Yonaguni

Yonaguni Monument

Underwater rock formation off the coast of Yonaguni, the southernmost of the Ryukyu Islands, in Japan. While many archaeologists and geologists believe that it is a natural formation, some hold the view that some of its features are man-made. Source: Wikipedia 8000 years old underwater stone monument probably made by unknown civilization...