Mafia Island Of Tanzania

Tanzania's Quiet Secret in the Indian Ocean

Imagine a tropical island where the main event happens underwater. There are no beach clubs or tour buses. Instead, you slip off a wooden boat in a snorkel and find yourself swimming beside the largest fish in the world, a whale shark as long as a bus, gliding past as calmly as a cloud.That is Mafia Island, and most people who visit Tanzania have never heard of it.

Where is Mafia Island?

Mafia lies off the coast of Tanzania, opposite the delta of the Rufiji River, about 120 kilometres south of Dar es Salaam. The   island is part of a small archipelago of several smaller islands, some of them inhabited. It is the third largest island in Tanzanian ocean territory, and about 65,000 people live there, mostly making a living from fishing, small-scale farming and the market in the main town, Kilindoni.The island and its archipelago were formed when part of the continental shelf was rifted and uplifted during the Pleistocene. It is not part of semi-autonomous Zanzibar, despite the historic links. Locals call the main island Chole Shamba, meaning "the farmlands of Chole."

Does the Name Have Anything to Do With the Mafia?

Not at all, and it is the first joke most visitors make. The name's true origin is debated. One theory says it comes from the Arabic morfiyeh, meaning "archipelago," while another traces it to the Swahili mahali pa afya, meaning "a healthy dwelling-place." Either way, the name is far older than the crime syndicate.

A Marine Park Worth Protecting

In 1995, with support from the World Wide Fund for Nature, Mafia became home to Tanzania's first multi-user marine park. The Mafia Island Marine Park covers roughly 820 square kilometers of reefs, seagrass beds, mangroves and sandy bays. Mangroves shelter young fish, seagrass feeds turtles, and the reefs support more than 400 recorded kinds of reef fish, as well as turtles and dolphins. With limits on damaging fishing and few visitors, the reefs remain in good condition.

The Main Event: Swimming With Whale Sharks

Mafia District is described as home to the largest concentration of whale sharks in Africa. Despite the name, a whale shark is a fish, not a whale. It is the biggest fish in the ocean, reaching around 12 meters long, and it is harmless to people, feeding by filtering plankton from the water. Each has a unique pattern of pale spots, like a fingerprint, which researchers use to recognize individuals.The main season runs from about October to March, with the best sightings usually from November to February. Trips go out by boat in the morning, and when a shark is spotted, a small group slips quietly into the water beside it. Responsible operators keep a safe distance, never touch the animals, avoid flash photography and limit how many people enter the water. Sightings are never guaranteed, because these are wild animals, but success rates in peak season are high.

Diving, Snorkeling and Birdlife

Outside whale shark season, Mafia is still a wonderful place to be in the water. Divers explore walls, channels and coral gardens with turtles, rays and reef sharks. Chole Bay is a protected deep-water anchorage studded with islets, sandbanks and beaches, and is sheltered from the east by reefs and Juani Island, which makes it calm and ideal for beginners.On land, nature lovers have plenty to see. An area of about 115,000 hectares around Chole Bay and the southern coast is recognised as an Important Bird Area, supporting species such as the western reef egret, Terek sandpiper and crab plover. The island is also home to fruit bats, or flying foxes.

The Island's Hidden History

Mafia was mentioned as early as the 8th century, and it once played a major role in trade between East Asia and East Africa, with Arab boats regularly calling in. The settlement on tiny Chole Island was one of the key towns controlling trade in silver from the mines of eastern Zimbabwe, which reached it through the old ports of Kilwa and Michangani. Today, giant baobab and fig roots wrap around its crumbling stone houses, tombs and mosques, and there are no cars.The raid on Kua. On nearby Juani Island stand the ruins of the medieval Swahili town of Kua. In the mid-1820s, raiders called the Sakalava, who arrived from Madagascar in about 80 canoes, attacked the town, killing many locals and taking others into slavery. Legend says Kua never recovered, and the sultan's capital moved to Chole.

A German island, then a British base. Under a treaty of 1890, Germany took control of Mafia, paying the Sultan of Zanzibar 4 million marks for the island and part of the mainland coast, and built the buildings still seen on Chole. On 12 January 1915, British troops took the island as a base for an air and sea assault on the German cruiser Königsberg, which was hiding in the nearby Rufiji delta.The mystery wall. In 2016, a diver searching for an old fort rumoured to have been washed out to sea instead reported finding the remains of a wall stretching almost 4 kilometres off the island. It is a reminder that Mafia still has secrets under the water.

Planning Your TripFlights to Mafia Airport run from Dar es Salaam, operated by carriers including Auric Air, Tropical Air and Coastal Aviation, and the flight takes around 30 to 40 minutes. You can also take a boat from the village of Nyamisati on the mainland to Kilindoni, which takes about 4.5 hours, but schedules and prices change, so confirm before you travel.

Mafia And a Safari: The perfect pair After days of early starts and long game drives in the Serengeti or Ngorongoro, nothing beats a few slow days by the sea. Mafia is quieter and more intimate than Zanzibar, and it offers something no inland park can: a close encounter with the ocean's gentle giants, along with a history few travellers know about.   Ready  to swim with sharks? Contact us at Yulle Adventures to add Mafia Island to your Tanzania safari or to plan a standalone dive and history escape.