Cavallino-Treporti is a land between the sea and the lagoon, rich in history and natural biotypes to be discovered, admired and preserved. The entire area is characterised by waters that define its boundaries; the coasts are in fact bathed by the salty waters of the Adriatic Sea, the brackish waters of the North Lagoon of Venice and the fresh waters of the River Sile (the latter is part of the river route known as the "Litoranea Veneta").
The coastal area consists of an elongated sandy coastline, about 15 km long, which is the result of sediments deriving from the Piave River, shaped by the sea, the lagoon and the marshy and lagoon areas that have been reclaimed over the years; but it is only as a result of human intervention that the area has acquired its current conformation.
Morphological elements characteristic of the lagoon landscape are the sandbar and the fishing valleys. The tegnùe are splendid natural limestone outcrops typical of this part of the Upper Adriatic (tegnùe: a dialect term which translates as 'holding areas', where fishing nets were caught).
Cavallino-Treporti is part of the Venice and its Lagoon site, which became a UNESCO World Heritage Site in 1987 precisely because of its lagoon environment.
The area, initially interested in an agricultural vocation (in past centuries it was defined as the "California di Venezia" for its production and sale of fruits and vegetables at the Rialto market), underwent a conversion in the twentieth century, becoming a consolidated tourist destination: the first European destination for open-air tourism.
Due to its climatic peculiarities, the Cavallino Peninsula has been identified as an Important Plant Area (IPA) called "Laguna di Venezia e Penisola del Cavallino" (cod. VEN4).
From a historical point of view, the origins of Cavallino-Treporti can be traced back to Roman times, passing through the dominion of the Serenissima Republic of Venice and the world wars, reaching up to the present day. A peculiarity of the area is represented by the massive presence of military buildings scattered throughout the territory (about 200 between fortifications and telemetry towers), the only example in the whole national territory.