First reported in 1959 by the American geologist F. P. Shepard and made known to the world by the oceanographer Jacques Cousteau with beautiful images a few years later, the Sand Falls are located in the southern part of the Bay of Cabo San Lucas, where the famous arch is also located, in Baja California Sur and are an extremely rare natural whim caused by two phenomena.
On the one hand, the formation of deep underwater canyons up to 3000 m deep that opened little by little while the Baja California Peninsula separated from the continent starting 8 million years ago. On the other hand, the confluence of three currents at different temperatures: the North Pacific, the South Pacific and the Sea of Cortez that drag the sand from the coast to the edge of the canyons where they begin to precipitate in the form of a golden waterfall with a constant, although variable, flow.
Although they are an unmissable sight, to see them first hand you need to be a certified diver. Here’s a link to encourage you to become a certified diver or just appreciate the beauty: