Just off the north-east coast of Tanzania, Mnemba Island is a private island surrounded by the turquoise waters of the Zanzibar Archipelago and its encircling coral reef. The atmosphere is quiet and exclusive, with powder-soft sand, rustling palms and little beyond the sound of waves and traditional fishing boats in the distance. Renowned for its clear waters and vibrant marine life, the island offers exceptional snorkelling and diving, where dolphins, green sea turtles and shoals of reef fish are frequently seen, along with occasional rays and reef sharks. Days unfold slowly between barefoot beach walks, dhow cruises and ocean swims. While access is limited and accommodation is intentionally understated in scale, the island’s appeal lies in its seclusion, natural beauty and unhurried coastal atmosphere.