Mafia is the quiet island south of Zanzibar, with a marine park, straightforward diving, and whale sharks in the season. It is not a party beach.
- Region
- Indian Ocean, south of Dar es Salaam
- Known for
- Mafia Island Marine Park, whale sharks in season
- How you arrive
- A short flight from Dar
- A usual stay
- Four nights or more
- Town
- Kilindoni
- Not
- A substitute for Stone Town
A marine island, not a second Zanzibar
Mafia Island lies south of Dar es Salaam, lower and quieter than Unguja. Most of the visitor energy is in the marine park on the south-east side: Chole Bay and the reefs around it. The town, Kilindoni, is a working port. The lodges are small. If you wanted Stone Town's alleys and a night market, this is the wrong island. If you wanted to be in the water twice a day, it is the right one.
Whale sharks pass through in the season as they follow the plankton. It is the island's famous hour and it is seasonal. The reef is the thing that is there in every month we would travel.
When to go
June to October is dry, clear and windier. The sea can be lumpy. November into March is the warmer, more humid window and the usual whale-shark months, with a risk of rain. We will not stack a shark promise onto a honeymoon in July.
BestGoodQuieter or wetter
After a safari, or on its own
Mafia fits after a southern safari, especially Nyerere, because both sit in the Dar flight pool. It also stands alone for a week of diving. It is an awkward bolt-on to a northern safari unless the international flights already use Dar es Salaam.
Packages that include Mafia Island
We do not have a set departure printed for Mafia Island yet. Tell us your dates and how many of you are travelling, and we will say whether it belongs in the trip.
All safarisQuestions people ask
- The usual window is roughly October to March, and it moves. Operators take small groups under a code of conduct: no touching, no blocking the animal. Outside those months, come for the reef and do not let anyone sell you a shark.
- The marine park has sheltered reefs that suit new divers and snorkellers, and walls for people who already know what they are doing. You do not need a safari's fitness. You do need to be honest about seasickness on the boat ride out.
References
The facts on this page were checked against these sources and written in our own words. Gate hours, fees and wildlife numbers change. We link the authority instead of printing a figure that will go stale.
Last reviewed 2026-10-28.
