Mafia Island is the antidote to a busy beach holiday. Where Zanzibar buzzes with resorts and nightlife, Mafia stays quiet, authentic and deeply connected to the ocean. The island sits at the heart of the Mafia Island Marine Park — one of Tanzania's most important protected marine areas — protecting coral reefs, mangroves, seagrass beds and the turtles, tropical fish and reefs that make it a world-class snorkeling and diving destination.
Its greatest claim to fame is the whale shark. Between roughly October and March, the world's largest fish gathers in Mafia's waters, and responsible guided snorkeling tours let you swim alongside these gentle giants under strict conservation rules. Beyond the reef, Mafia offers historic ruins, fishing villages, mangrove channels and the cultural island of Chole — a complete, unhurried coastal experience.