Mafia Island draws divers and snorkelers from around the world to the undersea world protected by the Mafia Island Marine Park. The best months for diving are October to March but the best weather on Mafia Island is May to October, March and April are months of heavy rain. Mafia Island Marine Park has excellent coral gardens, an abundant variety of fish and a relaxed diving atmosphere. Countless birds and over 400 species of fish can be seen in the area. Mafia Island is also a traditional breeding site for the green turtle, which are unfortunately close to extinction.
Mafia is also a desirable location for deep-sea fishing, especially tuna, marlin, sailfish and other big-game fish.
This island paradise first saw settlers in the 8th or 9th C, but Mafia became a more important settlement during the 12th to 14th C when it held a key position in the East African trading routes.