It is one of the larger minor islands in the archipelago, and the largest of those surrounding Pemba. Fundo Island is nine kilometres in length, though barely a kilometre in width, and is surrounded by a reef,together with the smaller Njao Island, which lies immediately to the north, and several smaller islands to the south, Fundo forms a natural barrier and breakwater for the harbour of the town of Wete, which lies six kilometres to the east.
