The Yonaguni Monument is a massive 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.
In 1987, while looking for a good place to observe the sharks, Kihachiro Aratake, a director of the Yonaguni-Cho Tourism Association, noticed some singular seabed formations resembling architectonic structures. Shortly thereafter, a group of scientists directed by Masaaki Kimura of the University of the Ryūkyūs visited the formations. Kimura is a strong advocate of the view that the formations are artificial.
The Monument consists of medium to very fine sandstones and mudstones of the Lower Miocene Yaeyama Group, deposited about 20 million years ago. Most of the significant formations are connected to the underlying rock mass (as opposed to being assembled out of freestanding rocks).
The formation called “The Turtle”
The main feature (the “Monument” proper) is a rectangular formation measuring about 150 m by 40 m, and about 27 m tall; the top is about 5 m below sea level. Most of its top surface consists of a complex series of terraces and broad steps, mostly rectangular, bounded by near vertical walls.
Is this pointing to the legendary Atlantis?!
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