Underwater waterfall and 13 other Mauritius must-sees

No one needs help finding a beautiful beach in Mauritius, but there's tons to explore away from the water as well.
For a small nation, Mauritius overflows with scenic hikes through the mountains, holy pilgrimage sites, amazing food and historic areas that trace the island's globe-spanning history.
Underwater waterfall
Just off the coast of Le Morne, on the island's southwest, Mauritius offers a spectacular illusion.
Sand and silt on the ocean floor run off in a way that makes it look like they're pouring down a waterfall -- or like the entire island is being sucked down a vast drain.
It's really just the flow of underwater currents that create the dramatic image. The ocean water is spectacular from the shore, but to see this particular view requires a helicopter ride. Tours are set up just for that.

source: https://edition.cnn.com/travel/article/mauritius-underwater-waterfall-must-see-attractions/