Mafia Island
The whale shark island. Tanzania's southernmost archipelago and its most protected marine park.
The Mafia Island at a Glance
The scale and character of this destination, briefly.
An Mafia Island Primer
Everything worth knowing before you visit.
Mafia Island sits just south of the Rufiji River mouth — the nutrient outflow from the river creates plankton blooms that attract whale sharks from October to March.
These are the largest fish in the sea, and Mafia is one of only a handful of places on Earth where encounters are predictable.
What You'll See
The species you can realistically expect in Mafia Island — with honest context on season and where.
Inside Mafia Island
The distinct areas and experiences within Mafia Island.
Whale shark season (Oct–Mar)
The whale sharks gather in shallow water just offshore. You snorkel, not scuba, because they stay near the surface. The right operators work on a strict code: no touching, limited swimmers per animal, boats keep distance.
Chole Bay Marine Park
Mafia's other treasure — a protected marine park with some of the healthiest coral reefs in the western Indian Ocean. Day snorkelling, dive trips, glass-bottom boat excursions.
Scale and mood
Mafia is small. There are maybe a dozen properties on the whole island. It's barefoot luxury at best, genuinely simple at the lower end. No clubs, no high-rise resorts, just sea and sand and frangipani trees.
Accommodations in Mafia Island
From mid-range classics to ultra-luxury tented camps. Swipe to compare.
Premium
$540 / night
Fourteen cottages on the Chole Bay Marine Park shoreline. Dive centre, traditional Swahili architecture, excellent whale shark access Oct–Mar.
Premium
$480 / night
Seven bungalows, Italian cuisine, beach directly on the Chole Bay Marine Park. Small, personal, excellent reputation.
Mid-range
$240 / night
Forty rooms and bungalows on a long stretch of Utende beach. The island's largest property, family-friendly, good value.
From the Field
A visual sample of what Mafia Island offers.
What You'll Do
The experiences we build into every Mafia Island itinerary.
Oct–Mar. The reason most travellers come to Mafia. Snorkel (not scuba) in shallow water with 12-metre whale sharks. Strict ethical code.
Oct–Mar · $180ppProtected marine park with some of the healthiest coral in the western Indian Ocean. Snorkel trips, dive trips, glass-bottom boat.
Half-day · $85pp
Tiny historic island in Chole Bay. Ruins of an 18th-century German trading post, still-inhabited traditional village, boat-building workshop.
Half-day · $45pp14th–16th century Swahili ruins on Juani island. A lost Swahili trading city, overgrown, atmospheric, fascinating.
Full day · $95ppWhen to Visit Mafia Island
Oct–Mar for whale sharks. Jun–Sep excellent for diving.
Practical Details
The key info for fitting this destination into your trip.
Safaris That Include Mafia Island
Our signature trips that feature Mafia Island on the itinerary.
Zanzibar
The Spice Island. Turquoise water, Stone Town's labyrinth, and the archetypal African beach.
Pemba Island
Zanzibar's wilder northern sister. World-class diving, no crowds, and the highest clove production on Earth.
Nyerere National Park
Formerly the Selous Game Reserve. Africa's largest protected area. Boat safaris on the Rufiji River.