Off the harbour there is the islet of St. George on which a Romanesque church bearing the same name is standing. The church, which was renovated in 1995, has a rectangular ground-plan prolonged by an apse.
Some historians have brought up theories that maybe the Roman town Ursaria was standing exactly on this islet. This opinion was based on “Tabula Peutingeriana” (a copy of a Roman map from the 3rd or 4th century) where the Roman town Ursaria was marked on an island. In the early Middle Ages an anonymous geographer from Ravenna placed likewise Ursaria on an island. There have not been any archaeological researches on the islet yet.