De Biesbosch National Park is one of the largest national parks in the Netherlands and one of the last extensive areas of freshwater tidal wetlands in Northwestern Europe. The Biesbosch consists of a large network of rivers and smaller and larger creeks with islands. The vegetation is mostly willow forests, although wet grasslands and fields of reed are common as well. The Biesbosch is an important wetland area for waterfowl and has a rich flora and fauna. It is especially important for migrating geese.

Sliedrecht is a town and municipality in the western Netherlands, in the province of South Holland. The municipality covers an area of 14.01 km2 (5.41 sq mi) of which 1.17 km2 (0.45 sq mi) is covered by water.