Category: Underwater ruins

Deep sea ruin in Japan-Yonaguni Monument

Depth: Approximately 100 ft (30 cm)

This ruin was found in 1987 by local divers in off the Coast of Yonaguni Island, the most southern of the Ryuku Islands in Japan; lie submerged ruins estimated to be about 10,000 years old. Many experts debate that is man-made, while more traditional scientists claimed that the construction is not man-made, and is a natural formation.

Ruin in japan

The structure sparked moment debate and drew crowds of diving archaeologists, media and curious hobbyists, none of whom were able to determine its identity. A squad of expert divers found that they are five subsurface archaeological sites near three offshore islands.

Professor Masaaki Kimura, a marine seismologist of the University of the Rykyus, stated that “Out a number of symbols, such as a plus sign and a V shape, that seems to indicate that human beings worked the stone and could have been made by wedge-like tools called Kusabi.”

Underwater ruin with divers

While many of the features seen at Yonaguni are also considered in natural sandstone formations throughout the globe, the concentration of so many peculiar formations with perfect 90 degree angle, straight walls, stairs, columns and what seems to be a human face carved in the stone.

Underwater ruin in Jamaica- Portal Royal-Wickedest City on Earth

Depth: 40 feet
Underwater ruin: Caribbean Sea

On June 7, 1962, a huge quake (Magnitude: nearly 8) that destroyed part of the city, and so at last the urban center was hit by tsunami, about 33 acres of the city passed forth under water and 2000 people were wiped out.


Between 1980 and 1990, Nautical Archaeology Program at Texas A&M University in cooperation with the Institute of Nautical Archaeology (INA) and JNHT called Jamaica National Heritage Trust conducted underwater archaeological investigation of the submerged portion on Port Royal, Jamaica. Present evidence suggests that while the areas of Port Royal that lay on the boundary of the harbor slid and scrambled as they passed, the area investigated by TAMU / INA, located more or less distance from the harbor.