Sailing
3 places in Cologne
Heider Bergsee
A reclaimed open-cast coal mining pit turned swimming lake near Brühl — 35 hectares of still water in the Rhineland Nature Park, with a beach resort.
Liblarer See
Artificial swimming lake in a former open-cast lignite pit — one of the largest lakes on the Villeseenplatte and a popular summer destination near Cologne.


