The Mozambique Channel is a portion of the Indian Ocean located between Madagascar and Mozambique. It was a World War II clashpoint during the Battle of Madagascar. The channel is approximately 460 km (286 mi) across at its narrowest point between Angoche, Mozambique, and Tambohorano, Madagascar.
The channel reaches a depth of 3,292 m (10,800 feet) about 230 km (143 mi) off the coast of Mozambique. A warm current flows in a southward direction in the channel, leading into the Agulhas Current off the east coast of South Africa. It is around 1000 miles (1600 km) long and the width of it varies from 250–600 miles (400–950 km).
The Vezo is the term the semi-nomadic coastal people of southern Madagascar use to refer to people that have become accustomed to live from sea fishing. The Vezo speak a dialect of the Malagasy language, which is a branch of the Malayo-Polynesian language group derived from the Barito languages, spoken in southern Borneo. They currently populate most of the littoral zone along Madagascar’s west coast between Toliara and Mahajanga. They do not identify with a particular Malagasy ethnic group but instead with their way of life. Because of their semi-nomadic marine migrations, their population is difficult to determine and has been estimated by counting the dugout canoes called pirogues (lakanas in Malagasy language) around Madagascar.
"Vezo" literally means the people who fish, but also has been known to mean 'to struggle with the sea'.