One of the most evocative destinations of the Tuscan Maremma , the Argentario promontory was originally an island, which over time has come to be found connected with the mainland for the raising of the Tombolo della Feniglia and then the Tombolo della Giannella.
The two inhabited centers, Porto S. Stefano and Porto Ercole, once dedicated above all to fishing, have now become important ports and renowned seaside resorts.