The hidden treasures of Mauritius: a waterfall under the sea!
The underwater waterfall in Mauritius is actually an amazing optical illusion. It is caused by the movement of sand and silt sediments, carried by ocean currents, which create the appearance of a “waterfall” underwater. This marvel is located in the southwest of the island, not far from the Morne Brabant peninsula.
https://www.stmartinweek.fr/cascade-sous-marine-ile-maurice/