The park's forest landscape is varied, with meandering rivers and streams, meadows, and dune embankments. In drainless depressions with water flow there are vast swamps and peat bogs.[1]
Large complexes of constructed ponds cover a total of more than 2,000 hectares (4,900 acres) with wetlands and open water. They are 150 years old, with many built on natural swamps, taking advantage of the underground geological formations.[1]