The Kinzigsee is a sports and recreational body of water near Langenselbold near Hanau . It is around 23 hectares and is separated into surfing and swimming areas. The Kinzigsee is an artificially created swimming lake. For the construction of the A 66 gravel deposits were extracted and the resulting pit filled with seepage water. This is also the reason that the water quality was questionable for a long time and bathing was prohibited. The Kinzigsee has no natural inflow through a river or stream, but is fed by seepage water from the Ruhlsee , which is separated from the Kinzigsee by a narrow dam. This in turn is fed by a small inflow from the Kinzig flowing past . Due to the small amount of seepage water that gets from the Ruhlsee through the dam into the Kinzigsee, the pH value of the water in the summer months was too alarming for a long time and bathing was prohibited for reasons of health safety. In 2003, a film was placed in the Kinzigsee, which separates the lake into a swimming area and a sailing and surfing area. Various chemical additives were then introduced into the swimming area, which caused the water to be cleaned and the water to be almost of drinking water quality, so that since then the lake can be used again as a bathing lake without hesitation, which is evident from the popularity of the entire Main-Kinzig district . There is about 600 meters of sandy beach , a lot of meadows and sports facilities.
