Waterskiing is a sport where an individual (or more than one individual) is pulled behind a motor boat or a cable ski installation on a body of water. The skier is either wearing one (slalom) or two (double) skis. The surface area of the ski (or skis) keeps the person skimming on the surface of the water allowing the skier to stand upright while holding onto a tow rope. A patent for a water ski was given to a constructor in Sweden already in 1841, but whether it ever came into use is unclear.… (More on Waterskiing)