Vistula Lagoon Haff" = "Fresh Lagoon". Digging a canal to connect the lagoon with the Baltic Sea is in consideration as a major EU-supported project. The canal, would re-activate the Elbląg river port. It would also free its dependence on Russia, which time and again revokes the right of passage for Polish ships through the Strait of Baltiysk as a form of pressure on Polish authorities. In October 2016 details of the project were confirmed by PiS leader, Jarosław Kaczyński. The long, 80 metres wide and 5 metres deep canal shall be completed by 2020 at an estimated cost of PLN 880
Venetian Lagoon the network of dredged channels are called, while around 80% consists of mud flats, tidal shallows and salt marshes. The lagoon is the largest wetland in the Mediterranean Basin. It is connected to the Adriatic Sea by three inlets: Lido, Malamocco and Chioggia. Sited at the end of a largely enclosed sea, the lagoon is subject to high variations in water level, the most extreme being the spring tides known as the "" (Italian for "high water"), which regularly flood much of Venice. The nearby Marano-Grado Lagoon, with a surface area of around , is the northernmost lagoon in the