Chake-Chake Bay is a large indentation in the central west coast of Pemba Island, one of the two main islands of Tanzania

Tanzania

The United Republic of Tanzania is a country in East Africa bordered by Kenya and Uganda to the north, Rwanda, Burundi, and the Democratic Republic of the Congo to the west, and Zambia, Malawi, and Mozambique to the south. The country's eastern borders lie on the Indian Ocean.Tanzania is a state...

's Zanzibar Archipelago

Zanzibar Archipelago

The Zanzibar Archipelago consists of several islands lying off the coast of East Africa in the Indian Ocean. There are two main islands, plus a host of smaller islets that surround them.-Main islands:...

.The town of Chake-Chake

Chake-Chake

Chake-Chake is a city located centrally on the Tanzanian island of Pemba. It is sited in the centre of a deep indentation in the west coast called Chake-Chake Bay....

, one of the island's main population centres, is located in the central coast of the bay.

The bay is not particularly wide, stretching for only five kilometres from north to south, but it is deep, lying between two long peninsulas, Ras Tundua in the south and Ras Mkumbuu

Ras Mkumbuu

Ras Mkumbuu is a long narrow peninsula on the central west coast of Pemba Island, one of the two main islands of Tanzania's Zanzibar Archipelago. The town of Chake-Chake, one of the island's main population centres, is located immediately to the south of it on Chake-Chake Bay...

 in the north. The latter peninsula was the site of one of the island's most important early settlements, Qanbalu

Qanbalu Ruins

The ruins of Qanbalu or Quanbalu are located on the west coast of the Tanzanian island of Pemba, part of the Zanzibar Archipelago. They lie close to the village of Ngagu at the end of a long narrow peninsula known as Ras Mkumbuu, which lies to the northwest of the town of Chake-Chake.The ruins are...

, which is now a ruin.