Santa Marina, once known as Villa di Cuspisano, is mentioned in some documents of the ‘600, which refer to the ancient castle on the sea and develop the hypothesis that it is a center of trade by sea with the Greeks, dating back to the 4th century BC

The strengthening of the port of Vallugola and the growing importance of the nearby settlement of Colombarone contributed to overshadowing the strategic function of the fort, which over the centuries remained inhabited only by agricultural laborers and fishermen.
It was precisely this progressive and gradual depopulation, in conjunction with the unstoppable erosion of its natural harbor and coast, which made Santa Marina’s possibility of acquiring an autonomous municipal identity vanish definitively, so much so that it was absorbed by the Municipality of Pesaro, remaining always addicted.

As a historical memory of the existing community, the church of Santa Marina Vergine still remains today, which is supposed to have been rebuilt in a position further downstream from the cliff to prevent it from falling into the sea. The church has lost its seventeenth-century style on the outside, although it still retains the bell tower. Its interior consists of a single arch and houses five altars, still accompanied by the paintings of the saints to whom they are dedicated.