Tarniţa Lake is an accumulation lake located on Someşul Cald river. It has an area of over 200 ha, and the existing dam is built of concrete in the shape of an arch, with a height of 97 m, a crest length of 237 m, having as main purpose the production of electricity.
The lake is the main source of water supply for the treatment station in Gilău, a station that supplies drinking and industrial water for Cluj-Napoca and other areas in Cluj County.
Periodically, various swimming or sport fishing competitions are organized by sports associations.
