Fühlinger See (Köln)
The Fühlinger See in northern Cologne is a chain of former gravel pits turned into a municipal sport and leisure park. Diving is allowed only in lakes 4, 5 and 6, outside the swimming area, and only with a dive card issued by the city's partner association. The city gives a maximum depth of about 18 m and visibility of up to 15 m. With an easy entry and modest depth it is a typical training and after-work lake for the Rhineland.
Tiefe: 0–18 m