The archipelago consists of the inner and outer Makatumbi Islands and is protected by the IUCN category II designation Dar es Salaam Marine Reserve (DMRS).

The islands, located in the Kigamboni District of the Dar es Salaam Region, have a combined area of 7.8 square kilometres (3.0 sq mi).

To the south is Kimbubu Island, and to the north is the mouth of Dar es Salaam harbor.

[1][2][3][4] The island is under threat from marine pollution; elevated cadmium readings were found east of Makatumbe Island near the entrance to the Dar es Salaam harbour.

This Dar es Salaam Region location article is a stub.