XC, or cross-country skiing, is a winter sport that involves skiing over a variety of terrains, typically in natural settings. It combines endurance and technique, allowing skiers to traverse long distances on snow-covered trails. This sport can be enjoyed recreationally or competitively, with events ranging from short sprints to marathon distances. In XC races, participants use either classic or skate skiing techniques. Classic skiing involves a straight-line motion, while skate skiing resembles ice skating. XC is popular in countries with snowy climates, such as Norway and Finland, and is a key event in the Winter Olympics.