Group of tanks for salting and production of fish products (like

garum). This complex was located mid-slope, over the western cliff of present-day Praia da Ribeira (Creek or Fish Beach) that, in the Roman era, was used as a fishing port. A

Tuscan order column

capital was found inside one of the

cetariae, together with ceramics used in construction and domestically, supporting the existence nearby of other buildings of the same period. Three

cetariae were unveiled, two only partially. At least three others are thought to exist under the pavement of Rua Marques Leal Pancada. The installation of the Castle on this site implied the destruction of Roman structures (the builders placed the tower's foundations over them).