The Grado Lagoon is located in Friuli Venezia Giulia and extends from Fossalon di Grado to the island of Amphora, at the mouth of the rivers Ausa and Corno. The lagoon, which occupies an area of about 90 square kilometers, is divided into an eastern sector and a western one by the dam on which the road that connects Grado to the mainland winds. The lagoon, which borders the Lagoon of Marano to the west, is crossed longitudinally by the Venetian Coastal, a waterway that connects Venice with the mouth of the Isonzo and Trieste.