VOLO, a seaport of Greece, on the E. coast of Thessaly, at the head of the gulf to which it gives its name. Pop. (1928) It is connected by rail with the main Athens-Salonika, railway at Larissa. The anchorage is safe, vessels loading and dis charging by means of lighters. The port has a depth of 23 to 25 ft.
The Kastro (citadel) marks the site of Pagasae, whence the gulf took the name of Sinus Pagasaeus or Pagasicus. Hence the
Argonautic expedition was said to have sailed. In the fourth cen tury it flourished under the tyrant Jason of Pherae. Two miles farther S. stand the ruins of Demetrias, one of the "Fetters of Greece," founded 290 B.C. by Demetrius Poliorcetes, and a fa vourite residence of Macedonian kings.