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Dryly but diplomatically referred to by the government as the "Underwater Landscape Resources" - which lie off the southern coast of the island
The Yonaguni Monument , also known as the Yonaguni (Island) Submarine Ruins , is a submerged rock formation off the coast of Yonaguni, the southernmost of the Ryukyu Islands, in Japan. It lies approximately 100 kilometres east of Taiwan.
© OpenStreetMap contributors
ループ道路
A 5 m wide ledge that encircles the base of the formation on three sides.
排水溝
A long narrow cavity with flat parallel walls that looks like a water trench.
メインテラス
Relatively wide flat area with vertical wall.
メインテラス階段
Formation that looks like giant stairs at the Main Terrace. There are some photos of these stairs on the internet, taken here from a specific angle, such that the stairs look like a pyramid going up high. In reality that is not the case.
三角プール
A triangular depression with three large holes at its north edge.
亀のモニュメント
A low star-shaped platform.