Vistula Lagoon million. However, major ecological considerations stand in the way. For example, mammal migration along the lagoon could be disrupted. Also, the inflow of brackish waters from the Baltic sea could result in serious unbalancing of the lagoon's freshwater ecosystem. From 1772 until 1918, the lagoon was part of the Kingdom of Prussia, which had become part of the German Empire in 1871. Between 1920 and 1946 it was split between Germany and the Free City of Danzig. At present state since 1945 its eastern part belongs to Russia (formerly USSR), Poland has 43.8% of its area at lagoon's western side.
Glenbrook Lagoon efforts the lagoon will remain as a healthy eco-system and will continue to be a sustainable habitat for native flora and fauna. Glenbrook Lagoon Glenbrook Lagoon is a fresh water lagoon located in Glenbrook, New South Wales at the foot of the Blue Mountains. It is heritage-listed. Glenbrook Lagoon is a heritage listed site located in the suburb of Glenbrook in the Blue mountains 10 kilometres west of Penrith and 3.8km from Nepean river. The lagoon is a natural flat bottom freshwater lagoon with an average depth of 2.7 metres and a maximum depth of 4.05 metres. The lagoon covers