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A dramatic natural landmark, Le Morne Brabant is a basalt monolith rising 556 metres from a slender peninsula on Mauritius’s southwestern coast, its sheer cliffs plunging into a lagoon of impossible turquoise. Encircled by powder-white beaches and a living coral reef, the massif is both a UNESCO World Heritage site — honouring its history as a refuge for escaped slaves — and a geological marvel visible best from above.

From the air, the surrounding seabed performs an optical sleight of hand: sand and silt, swept by currents off the submarine shelf’s edge, appear to tumble into an abyssal blue as though pouring over a cataract. This is the celebrated underwater waterfall illusion, a trick of depth, light and sediment rather than falling water.

Together, mountain and mirage compose one of the Indian Ocean’s most photographed panoramas — a landscape where volcanic drama, colonial memory, and marine optics converge in a single, sun-drenched frame.