Participating in a Langlauf is a popular winter sport in which skiers use specialized equipment to traverse a cross-country course. The term 'Langlauf' is derived from the German words for 'long run' and is also known as Nordic skiing. It is a form of skiing that combines elements of both cross-country and downhill skiing, and is often used in competitive events. To participate in a Langlauf, one must have the proper equipment, such as skis, poles, and boots, as well as the necessary skills and knowledge of the terrain.