Depoldering of the polders Moordplaat, Turfzakken, Lepelaar, the Plomp en Kwestieus in the Biesbosch National Park: the Zuiderklip. The Biesbosch National Park is an area of freshwater tidal wetlands in North Brabant and is one of the largest national parks of the Netherlands..© 23 sept. 2016 Marco van Middelkoop/Aerophoto-Schiphol