Helicopter flight over the underwater waterfall

A helicopter flight over the “underwater waterfall” of Mauritius. Off the Le Morne peninsula, in the south-west, sand and silt slide from the submarine plateau towards the deep and, seen from the sky, draw the image of a sunken waterfall. It is an optical illusion, and it only shows itself in full from above, over the lagoon and Le Morne Brabant, a mountain on the UNESCO World Heritage List.