Yonaguni Submarine Ruins
The Yonaguni Submarine Ruins are also known as the Yonaguni Monument, and they can be found on the southern fringes of the Ryuku Islands of Japan. The ruins were discovered in 1986 so they’re not a new discovery by any means but a surprising one nonetheless.
The discovery was made by a group of tourism officials on a visit to see the sharks in the area because the place is known to be home to many sharks. In addition to the sharks, the officials found the Yonaguni Submarine Ruins, and their discovery has had the effect of increasing the area’s appeal as a dive site courtesy of the ruins.