UFOs Do Not Come Only from the Sky: A Hidden Ocean Civilisation Could Be on Earth

More than 70% of Earth's surface is ocean. A few hundred metres below the surface, light dies quickly and pressure climbs fast, and a sonar map still cannot tell you whether a shape down there is rock, a wreck, or a built structure.

More than 70% of Earth's surface is ocean. A few hundred metres below the surface, light dies quickly and pressure climbs fast, and a sonar map still cannot tell you whether a shape down there is rock, a wreck, or a built structure.

More than 70% of Earth's surface is ocean. A few hundred metres below the surface, light dies quickly and pressure climbs fast, and a sonar map still cannot tell you whether a shape down there is rock, a wreck, or a built structure.

More than 70% of Earth's surface is ocean. A few hundred metres below the surface, light dies quickly and pressure climbs fast, and a sonar map still cannot tell you whether a shape down there is rock, a wreck, or a built structure.