Mafia Island (394 km2) is located in the east coast of Tanzania opposite the delta of the Rufiji River. The 20 kilometres wide stretch of water between the delta and the island is called the Mafia Channel. Mafia Island is part of a small Tanzania’s Mafia archipelago in the Indian Ocean   consists of one large island and several smaller islands, including Jibondo, Chole, Juani, Bwejuu, Mbarakuni, Shungumbili and Nyororo. Some of which are inhabited. The main town on Mafia is Kilindoni on the west coast. In the south beaches include secluded Ras Kisimani, just across from Bwejuu Island and Utende. On the east coast is Chole Bay, Mafia's protected deep-water anchorage and original harbour. The bay is studded with islets, sandbanks and beaches, and is protected from the east by coral reefs and Juani Island. 

The island lies across the trade routes from the Gulf and has seen Egyptian, Omani, Greco-Roman, Chines, Portuguese, English and German occupation, and has had a prominent place in the history of the East Coast of Africa, as it was a safe haven for ships to stop for water and for repairs. The Mafia Archipelago hosts antiquities dating back to the Eleventh Century, including ruins at Kisimani Mafia, Kanga, Kua on Juani Island and Chole Island.

The atmosphere of all the islands in Mafia is one of adventure: days are spent fishing or exploring exposed sand bars and untouched reefs, however the main appeal for many visitors is that it remains locked in a time warp of the early 20th Century.

Surrounded by a protected marine park, the diving, fishing and snorkeling here are the best in the entire region. Mafia is truly an excellent destination for those wanting to spend a bit of time in the underwater world and interested in nature and outdoor activities. Known for it’s location of the migratory Whale Sharks, spotting these magnificent creatures is an unforgettable experience of a lifetime.

The atmosphere of all the islands is one of adventure: days are spent fishing or exploring exposed sand bars and untouched reefs. Perhaps best for those mad keen on making diving the central focus of their Tanzania holiday.

Mafia is undoubtedly the best dive location in Tanzania. It’s a small haven that has a lot to offer and, quite exquisitely, is also suitable for less experienced divers. The reefs of the archipelago offer a staggeringly beautiful and varied display of marine life. The diversity of animal and plant life is hard to match, with over 50 types of corals and 400 species of fish so far identified. On top of that, Mafia offers one of the world’s best opportunities for snorkeling with whale sharks!