Which formation, Łebsko Lake or Coatepeque Caldera, is part of the Słowiński National Park?
Łebsko Lake Łebsko Lake (German: "Lebasee" ) is a coastal lake in the Pomeranian Voivodeship of Poland. It is the part of Słowiński National Park. However, it was never a part of the Baltic sea. It was formed because of the rise in the sea level and the flooding of the local meadows.
Mietkowski Lake Mietkowskie Lake (Polish: "Jezioro Mietkowskie") - is the largest lake in the Dolnośląskie Voivodeship in Poland. The lake is a retention reservoir created when a dam was built on the river Bystrzyca in Mietków, about 45 kilometres south-east of Wrocław. Geographically the lake is located on the Świdnicka Plain; divided by the Bystrzyca Valley, located in the Bystrzyca Valley Landscape Park. The dam's construction began in 1974, and fully filled in 1986. The lake's dam has a length of 3,2 kilometres and a height of 17 metres. The lake's bank is excavated for aggregate, deepening the lake. The lake's water was lowered and the lake was renovated in 2007 and 2011.