Three main rivers/mountain torrents all rise from mount Pelion (with its peak at 1,610 metres (5,280 feet)), crossing the city to create a unique urban geography, before ending in the Pagasetic Gulf flowing west.The Anavros river, famous for Jason's pass, divides the Nea Demetriada district from the rest of the urban area.Two alternative theories allude to a Greek origin through the words βολή (throw), as fishermen threw their nets into the sea from that area, and βώλος (piece of land).In the 14 century Volos came under the control of Serbia, subsequent conquest by the Republic of Venice and the Catalans led to a large drop in the local population.During the Axis occupation of Greece, the prompt actions of the local chief rabbi, Moshe Pessach, and the Greek authorities, saved about 700 of the local Jewish community from deportation to the Nazi death camps.Volos is also well known for its assortment of mezedes and a clear, alcoholic beverage known as tsipouro.Volos is a major commercial port of mainland Greece in the Aegean sea (after Piraeus and Thessaloniki), with connection by ferry and hydrofoil to the nearby Sporades Islands, which include Skiathos, Skopelos and Alonissos.There are also connections to Limnos, Lesvos, Chios and Skyros.
Later, it was a center of a kaza in the Sanjak of Tirhala, which was part of Jannina Vilayet.
The first reference to Golos (Greek: "Γόλος") comes from a Byzantine document dated to 1333, while Volos appears to be a later corruption of the term.
Golos probably originated from the Slavic word gološ 'seat of administration', or perhaps from gol bald, naked, as the area has sparse vegetation.
Modern Volos is built on the area of the ancient cities of Demetrias, Pagasae and Iolcos.
Demetrias was established by Demetrius Poliorcetes, King of Macedon.