Courtesy of WOWSA, Huntington Beach, California.

During my training and exploratory swims in advance of the 29 km circumnavigation around Yonaguni Island in Japan in 1994, I remember seeing these massive structures under the incredibly clear waters in Okinawa,” recalls Steven Munatones.

The structures appeared to be man-made or at least not natural because of all the right angles, sharp corners, and perpendicular walls.”

It turns out that the structure is called the Yonaguni Monument.

Marine scientists and researchers and archaeologists are starting to focus more and more on marine archaeology.

Scripps Institution of Oceanography and the Department of Anthropology at the University of California San Diego recently launched the Scripps Center for Marine Archaeology. Researchers conduct fieldwork at key underwater and coastal archaeological sites around the world, studying the interaction of marine environments and human cultures – and will undoubtedly find more and more insight into mankind’s distant past.

Top video courtesy of The History Channel‘s Ancient Aliens in an episode called Japan’s Atlantis.

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