Beyenburger Stausee, reservoir in Wuppertal, Ennepetal and Radevormwald, Germany

The Beyenburger Stausee is a reservoir in the Wuppertal, Ennepetal, and Radevormwald region, created by a dam and fed mainly by the Wupper River. The water stretches long and narrow for about 1,000 meters, with smooth, easy paths running along both shores.

The reservoir was created by a dam originally built in the late 1890s and rebuilt in its current form after World War II to control flooding and store water for the area. A fish ladder was later added to allow fish populations to move freely upstream.

The eastern shore in Ennepetal holds the clubhouses of four canoe clubs, including the VfK Wuppertal, whose dragon boat squad Drag Attack Team has won three world titles. The three clubs of the Kanu-Sportgemeinschaft Wuppertal produced Olympic participants such as Ulrich Eicke. Since 2007 a mowing boat cuts water plants to keep the lake usable.

The reservoir is easily accessible with free parking nearby and regular bus service to the area. The flat, level paths work well for all ages, and visitors should bring weather-appropriate clothing since conditions can change throughout the day.

The fish ladder built during the 2009–2011 renovation of the dam is 190 metres long, making it one of the largest fish passes in North Rhine-Westphalia. It lets fish bypass the 8.6-metre concrete weir, whose 13-metre-wide gate can be lowered.