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Mafia Island

Mafia Island lies 160 km south of Dar es Salaam, a world away from Zanzibar's tourist crowds. The island and surrounding waters form the Mafia Island Marine Park—Tanzania's first marine park and one of the largest in the Indian Ocean. With over 400 species of fish, pristine coral reefs, and reliable whale shark sightings (October–March), Mafia offers some of East Africa's finest diving. The beaches are quiet, backed by coconut palms and traditional villages.

Key Information

Sand Type

White coral sand; some seagrass areas

Water

Warm, clear Indian Ocean; exceptional visibility for diving

Best Season

October–March (whale sharks); June–October (best diving visibility)

Access Difficulty

Moderate — flights from Dar es Salaam; limited services

Uniqueness

Marine park, whale sharks, pristine reefs, low tourist numbers

Preservation

Marine park since 1995; community-based conservation

Safety

Safe; dive with qualified operators; respect marine park rules

Coordinates

7.85°S, 39.78°E

Access

Fly from Dar es Salaam (DAR) to Mafia Airport (MFA) on small aircraft (30 min). Alternatively, take a boat from Nyamisati on the mainland (several hours, seasonal). Once on the island, boat transfers to lodges arranged. The island has limited infrastructure—most visitors stay at eco-lodges that arrange all activities.

Rankings

Category	Rating
Beauty	Exceptional
Uniqueness	Exceptional
Access	Moderate
Preservation	Exceptional

Marine Life

Mafia's reefs are among the healthiest in East Africa. The whale shark aggregation at Kilindoni Bay draws divers worldwide. Sea turtles nest on beaches; dolphins frequent the channels. Chole Bay offers calm water snorkeling. The marine park prohibits anchoring on coral, limiting damage from boats. Most diving is boat-based with professional operators.

Frequently Asked Questions

Where is Mafia Island?

Mafia Island is located in Tanzania, Pwani Region. It sits on Indian Ocean and features white coral sand beaches.

What is the best time to visit Mafia Island?

The best time to visit Mafia Island is October–March (whale sharks); June–October (best diving visibility). Check local weather conditions before planning your trip.

Is Mafia Island safe for swimming?

Safe; dive with qualified operators; respect marine park rules