Three islands, and not where the maps in listings put them
Shungimbili, Nyororo and Mbarakuni are three small islands of the Mafia group, gazetted as marine reserves in 2007 and managed by Tanzania’s Marine Parks and Reserves Unit under the Marine Parks and Reserves Act of 1994. They are collectively referred to as the Mafia marine reserves.
They lie north and north-west of Mafia, beyond the northern limit of Mafia Island Marine Park. They are frequently placed to the south. They are also, and more importantly, a separate legal thing from the marine park: they appear nowhere in the park’s management plan or its zoning, and they carry a stricter protection level than any of the park’s own zones — a national audit of Tanzania’s marine protected areas describes them as no-take, with removal of marine life prohibited.
Figures are thin. Nyororo Marine Reserve is recorded at eleven square kilometres in a protected-area database; no area could be found for Shungimbili or Mbarakuni, and no Government Notice number for the 2007 declaration could be traced. There is no general management plan for the reserves — the Marine Parks and Reserves Unit publishes four, and none of them covers these islands.
The conflict on the water
This is the substance of the reserves and the reason they are worth a page.
A 2018 national audit of marine protected area management sets out the position at Nyororo. Mafia District Council issued 220 fishing licences covering the protected area. Fishers accessed the island regularly and established fishing camps inside it. When the marine park insisted they vacate, its officers were physically assaulted and injured by local people at Nyororo, and the two authorities were drafting a memorandum of understanding to sort out who was responsible for what.
That is an unusually candid official account of a protected area that exists on paper and is contested in practice. Anyone told these are pristine untouched islands is being told a simpler story than the government’s own auditors tell.
Mafia District Council records that Nyororo, Mbarakuni and Shungimbili carry seasonal fishing camps rather than permanent settlement, which is consistent with the audit’s account.
Can you go?
Mostly no, and for an unexpected reason. Shungimbili is now run as a privately hired island with a single property on it, so landing there is a matter of renting the island rather than of visiting a reserve. For Nyororo and Mbarakuni, no published visitor rules could be found at all.
The practical position is that these are not a day trip from Chole Bay. They are a long way north of the dive centres, on the exposed side of the archipelago, and nothing published describes an arranged visit. Treat them as part of understanding how Mafia’s waters are governed rather than as a destination — the conservation tours guide covers that distinction.
Common questions about the Mafia marine reserves
Are these part of Mafia Island Marine Park?
No. They are separate marine reserves under the Marine Parks and Reserves Unit, gazetted in 2007 and lying north of the park’s boundary. They appear in none of the park’s zoning.
Are they no-take?
On paper, yes — the strictest protection level, with removal of marine life prohibited. In practice a 2018 national audit records 220 fishing licences issued over the area, fishing camps established on Nyororo, and marine park officers assaulted when they tried to enforce it.
Can I visit?
Shungimbili is now a privately hired island with a single property on it. For Nyororo and Mbarakuni no visitor arrangements are published. None of the three is a practical day trip from Chole Bay.
How big are they?
Nyororo is recorded at about eleven square kilometres. No published area could be found for Shungimbili or Mbarakuni, and the reserves have no general management plan.