Fair of Sant Antoni de Tortosa Activity · Tortosa, Baix Ebre, Tarragona Image of Tortosa, not of the place itself. The Fira de Sant Antoni de Tortosa is held in a city that was a major olive-oil market until the war and the frosts of 1956 sank the sector, today covered by the Oli del Baix Ebre-Montsià Protected Designation of Origin. Photo: Viquipèdia / Wikimedia Commons (CC BY-SA) What to see and do in Tortosa