The Venetian lagoon, or Venetian lagoon, is a lagoon of the northern Adriatic Sea, along the coast of Veneto where the city of Venice is located.
The area of the lagoon is about 550 km2, of which 8% are occupied by the land (Venice itself and the many small islands). About 11% are permanently composed of water, or dredged channels, about 80% of which are marshy areas and salt marshes.
The Venice Lagoon, as well as the city of Venice, have been on the UNESCO World Heritage List since 1987. The lagoon of Venice is connected to the Adriatic by three mouths: Lido-San Nicolò, Malamocco and Chioggia. Being located at the end of a closed sea, the lagoon is subject to great variations of the level of water, the most visible of all (especially in autumn and spring) causes phenomena like acqua alta (« high water "), which periodically inundates the lower islands, or acqua bassa (" low water "), which makes impassable this time the shallower channels. To facilitate navigation, the deeper courses are marked by dolphins or "tinker" (Italian term designating a structure formed of three pillars linked together and sunk along the channels to indicate the waterway).© Photo of Emmanuel Buchot
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