Skiing - cross-country, walking

This activity burns approximately 460 calories per hour

Cross-country skiing, one of the most physically demanding sports, dates back to the early 19th century. The skis allow the skier to glide across the surface of the snow instead of sinking through it. Simply walking on the skis is the least demanding aspect of the exercise. The caloric consumption for walking on cross-country skis is approximately the same as slow walking.