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
Freshwater Lagoon the Mad River estuarine wetlands 30 miles (50 kilometers) to the south. Freshwater Lagoon is similar to other coastal features of northern California including Humboldt Bay to the south and Lake Earl to the north. An alluvial plain is surrounded by steep uplands. Hills adjacent to Freshwater Lagoon have been identified as undivided pre-Cretaceous metasedimentary rock. Studies around Humboldt Bay indicate tectonic activity along the Cascadia subduction zone has caused local sea level changes at intervals of several centuries. The plain may support fresh water wetlands or Sitka Spruce forests following uplift events and salt marsh or inundated shellfish beds