Mafia Archipelago
A remote marine park paradise — swim with whale sharks, dive on pristine reefs, and watch sea turtles nest.
Best for
How to get there
Daily flights from Dar es Salaam to Mafia Island Airport (MFA) — 30 minutes
Average trip length
3–7 days
A remote island paradise south of Zanzibar, Mafia is world-renowned for whale shark encounters and pristine coral reefs. The Mafia Island Marine Park protects one of East Africa's richest marine ecosystems — perfect for diving, snorkelling, and dhow sailing.
First time visiting here?
Learn what to expect, what to carry, and common mistakes to avoid.
October – March (whale sharks) · Year-round for diving
Whale sharks are present October–March when conditions draw plankton blooms. Diving is year-round, with best visibility September–March. The island is quietest April–June during heavy rains.
7 verified operators
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Budget
Guesthouse + activities from $130/day
Mid-range
Dive lodge with meals and activities $280–$500/day
Premium
Boutique eco-lodge from $600+/day
Where is Mafia Island in Tanzania?
Mafia Island lies in the Indian Ocean about 160 kilometres south of Dar es Salaam and 20 kilometres off Tanzania's southeastern coast. It sits at the southern end of the Zanzibar Channel, between the Rufiji River delta and the open ocean. The island is part of the Mafia Island Marine Park, one of the most important marine conservation areas in East Africa.
Why is Mafia Island famous?
Mafia Island, Tanzania is best known for whale shark snorkelling — the waters around the island host one of the most accessible whale shark aggregations in the world, typically October to March. Beyond whale sharks, Mafia has pristine coral reefs with very few dive tourists, sea turtle nesting beaches, and a marine park protecting dolphins, dugongs, and hundreds of fish species.
Are whale shark encounters guaranteed?
No, but success rates are very high October–March. The marine park monitors sightings daily and operators check in the morning before heading out.
Is Mafia Island good for non-divers?
Yes — snorkelling with whale sharks and sea turtle encounters do not require dive certification. The island itself is beautiful and peaceful even without water activities.
