Zanzibar Channel

The Zanzibar Channel is a strait in south-eastern Africa, separating the island of Unguja (also known as Zanzibar) from mainland Tanzania. The channel is 120 km long and 29-37 km wide, with depth varying from a few dozen metres (in the centre) to a few hundred metres to the north and to the south.[2] In ancient times the overall depth of the channel has been considerably smaller (about 120 m less during the last ice age).[2]

Zanzibar Channel
The Zanzibar Channel in an 1872 map
Coordinates	06°00′S 39°00′E
Ocean/sea sources	Indian Ocean
Basin countries	Tanzania

Max. length	110 km (68 mi)
Max. width	37 km (23 mi)[1]

Islands	Unguja (Zanzibar)

The southern entrance to the Channel is indicated by a lighthouse located on the mainland coast on the Ras Kanzi promontory, 22 km south of Dar es Salaam.[3]

Swimming

In 2015, the 29km solo swim across the Zanzibar Channel starting at the Pungume Sandbank was completed in 9 hrs 1 minute by Jean Craven (SA), Robert Dunford (Kenya), Megan Harrington Johnson (SA), Samantha Whelpton (SA) and Emil Berning (SA) [4]

gollark: "so we'll make everyone immortal, but also have random people with no oversight kill arbitrary people for ??? reasons" - VERY INTELLIGENT PEOPLE.

gollark: That was fictional! It was also really stupid!

gollark: Also, that would effectively just turn over control to whoever writes the objective function/manages the computing stuff involved.

gollark: Doing all governance tasks basically requires AGI. We do not *have* AGI, and if we get it there will be bigger problems.

gollark: And, as someone who knows more about machine learning/AI than you (41025 kilooffense), we cannot actually just sidestep the issue by turning over governance to AI.

References

African seas
Oceans and seas	Alboran Sea Atlantic Ocean Indian Ocean Levantine Sea Mediterranean Sea Red Sea Southern Ocean
Gulfs and bays	Abu Qir Bay Acheïl Dakhlet Al Hoceima Bay Algiers Bay Algoa Bay Ambas Bay Ana Chaves Bay Angra de Cintra Antongil Bay Antsiranana Bay Arab's Gulf Baía Almeida Baía da Condúcia Baía da Corimba Baía de Mocambo Baía de Mossuril Baia de Porto Amboim Baía de Santa Marta Baía de Sucujaque Baía de Tombua Baía do Ambriz Baía do Bengo Baía do Dande Baía do Govuro Baía do Lúrio Baía do Nzeto Baía do Suto Baie de Gorée Baie de Sangareya Baie de Yof Bandombaai Bay of Anfile Bay of Arguin Bay of Aseb Bay of Arzew Bight of Benin Bay of Beylul Bay of Edd Bay of Hawakil Bay of Langarano Bay of Saint-Augustin Bay of Tangier Benguela Bay Bera’esoli Betty’s Bay Bight of Biafra Bocock’s Bay Bombetoka Bay Bootbaai Bosluisbaai Cabinda Bay Cape Cross Bay Cape Negro Bay Chake-Chake Bay Chameis Bay Chwaka Bay Conception Bay Cuio Bay Dakhlet Nouadhibou Dalwakteah Bay Deurloopbaai Doringbaai Dungonab Bay Durissa Bay Elands Bay Enseada das Pombas Enseada de São Braz Enseada do Catumbo Enseada do Chalungo Enseada do Quicombo Enseada do Quitungo Enseada dos Três Irmãos Equimina Bay False Bay Farta Bay Fernao Veloso Bay Foul Bay Frederik se Baai Grosse Bucht Gulf of Aden Gulf of 'Agig Gulf of Gabès Gulf of Guinea Gulf of Hammamet Gulf of Sirte Gulf of Suez Gulf of Tadjoura Gulf of Tunis Gulf of Zula Ghoubbet-el-Kharab Hafun Bay South Hann Bay Harrison Cove Henties Bay Hirghīgo Bahir Selat’ē Horingbaai Hottentotsbaai Hurdiyo Hydra Bay Inhambane Bay Jammer Bucht John Owen Bay Kalawy Bay Kiwaiyu Bay Lambert Bay Lamu Bay Langbaai Loango Bay Lobito Bay Luanda Bay Lüderitz Bay McDougall Bay Manza Bay Maputo Bay Markusbaai Memba Bay Menai Bay Meob Bay Mietjie Frans se Baai Moraha Bahir Selat’ē Mossel Bay Möwebaai Namibe Bay Noopbaai Oran Gulf Pemba Bay Pipas Bay Platbaai Plaatjieskraalbaai Plettenbergbaai Pointe-Noire Bay Porto Alexandre, Angola Prinzen Bucht Río de Oro Bay Rock Bay Roode Bay Rooiwalbaai Saint Francis Bay Saint Francis Bay (Eastern Cape) St Helena Bay Saint Sebastian Bay Saldanha Bay Sandwich Harbour Sierra Bay Skoonbergbaai Skurfbaai Slangbaai Sodwana Bay Sofala Bay Somnaasbaai Spencer Bay Struisbaai Spoegrivierbaai Swartstraat Table Bay Thysbaai Tietiesbaai Ungama Bay Walker Bay Walvis Bay (bay) Yawri Bay
Straits	Bab-el-Mandeb Bab Iskender Canal de Bolama Canal de Bolola Canal de Caió Canal de São Vicente Canal do Meio Mafia Channel Massawa Channel Mozambique Channel‎ Tigres Strait Pemba Channel Shubuk Channel Guardafui Channel Strait of Gibraltar Strait of Sicily Straits of Tiran Zanzibar Channel
Historical seas	Aethiopian Sea Erythraean Sea Sea of Zanj

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