Fühlingen Lake, Recreational lake system in Cologne, Germany.

Fühlingen Lake is a system of seven interconnected lakes covering 100 hectares, grouped around a central 2,300-metre regatta course 130 metres wide with six 2,000-metre lanes. Each lake has a set purpose: one for swimming and diving, one for fishing, one for windsurfing, three for bathing and boating, and one for rowing and canoeing. A straight bridge crosses the channel linking the central basin to the upper-right arm.

The lakes began forming in 1912 through gravel extraction for road and railway construction, with the pits later filling naturally from groundwater and Rhine water. From this industrial past emerged one of the region's most important water sports and recreation facilities.

The grounds serve as a gathering place for water sports enthusiasts and people seeking recreation from across the region. The shores are used by families, runners, and cyclists who appreciate the open paths and green spaces.

Most shore areas are freely accessible, but special swimming areas like Blackfoot Beach charge entry fees. The best time to visit is during the warmer months, when swimming, rowing, and other water sports are fully available.

The regatta course measures 2,300 m long and 130 m wide, with six 2,000 m lanes plus a seventh for access to the start. When no races are held, lanes 5 to 7 may only be used toward the start and lanes 1 to 3 only toward the finish; lane 4 is closed for training.