Fresh water is naturally occurring water on the Earth's surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams. Fresh water is generally characterized by having low concentrations of dissolved salts and other total dissolved solids. The term specifically excludes seawater and brackish water although it does include mineral-rich waters such as chalybeate springs. The term "sweet water" has been used to describe fresh water in contrast to salt water.
It is best known as a ski resort. Together with nearby Val d'Isère, it forms the "Espace Killy" ski area. Tignes was the freestyle skiing venue for the 1992 Winter Olympics and co-host city for the 1992 Winter Paralympics.