Werkendam is a town and a former municipality in the southern Netherlands. The municipality, part of Land van Heusden en Altena, contained a large part of De Biesbosch area as is located in the province of North Brabant. On January 1sth 2019 it joined Woudrichem and Aalburg in the new municipality of Altena.

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.