Number three is the Yonaguni Monument.

第三名是与那国岛纪念碑。

The main formation is the Yonaguni monument, which appears to have been artificially made, with its square, steep risers, and finely shaped images.

主要构造是与那国纪念碑，其方形陡峭的立柱和精美的图像似乎是人工建造的。

In the winter of 1987, Kihachiro Aratake, a local tourism group director, was diving off the southern coast of Yonaguni island, in Japan, searching for a good place to observe hammerhead sharks.

1987年冬天，当地旅游集团负责人Kihachiro Aratake在日本与那国岛南部海岸潜水，寻找观察双髻鲨的好地方。