Dender is a river located in Belgium, primarily flowing through the Flemish Region. It is a tributary of the Scheldt River and spans approximately 60 kilometers. The river is known for its scenic landscapes and is an important waterway for local ecosystems. The Dender River passes through several towns, including Dendermonde and Ninove. It has historical significance, as it has been a vital route for trade and transportation over the centuries. The river also supports recreational activities such as fishing and boating, contributing to the local economy and community life.