the venice lagoon, or venetian lagoon (in venetian dialect ?aguna de venesia or ?aguna vèneta)

550 1987 adriatic aguna along approximately area artificial canals central-northern coasts composed dialect dredged entire flats floodplains heritage included islands italian itself km² lagoon land largest list located made mediterranean permanently sea smaller southern surface territory tidal unesco upper venesia venetian veneto venice vèneta was water which world