The Winter Olympics is an international sporting event that takes place every four years and features a variety of winter sports. One of the most popular events is the LUGE, which is a one-person SLED that athletes ride down a track of ice while lying on their back. Bobsled is another popular event, which involves teams of two or four people riding a large SLED down a winding, icy track. Finally, SLED is a generic term for any vehicle used to slide down a snowy hill, such as a toboggan or a snowboard.