Blausteinsee (Eschweiler)
Blausteinsee near Eschweiler, between Aachen and Cologne, is a flooded lignite open pit and one of the deepest diving lakes in the Rhineland. The operator gives a depth of 46 m and has installed training platforms at 6, 9 and 20 m. A filling station with air and nitrox sits next to the car park and entry platform. Divers report very variable visibility, many crayfish and cold water even in summer.
depth: 0–46 m