Zanzibar Channel km south of Dar es Salaam. 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) 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
Zanzibar the inhabitants. The presence of microliths suggests that Zanzibar has been home to humans for at least 20,000 years, which was the beginning of the Later Stone Age. A Greco-Roman text between the 1st and 3rd centuries, the "Periplus of the Erythraean Sea", mentioned the island of "Menuthias" (), which is probably Unguja. Zanzibar, like the nearby coast, was settled by Bantu-speakers at the outset of the first millennium. Archaeological finds at Fukuchani, on the north-west coast of Zanzibar, indicate a settled agricultural and fishing community from the 6th century CE at the latest. The considerable amount of daub found