14 - Under The Sea: Underwater Waterfall

Just off the coast of the island of Mauritius in Africa, there is an amazing optical illusion that is a sight to behold. Here, it appears as though there is a waterfall that runs under the water.

This optical illusion is caused by the ocean currents that pull sand and silt in a certain direction, making it look as though it is falling down. The seemingly large drop is actually no deeper than the rest of the surrounding water. The underwater waterfall can only be seen from the air, and pictures have been captures by planes, helicopters, and even drones!

The colour of the ground changes depending on what kind of sand and silt is underneath of it. This causes the ground beneath to appear as though it has different depths when it doesn't.