Cross-country skiing, 越野滑雪

Cross Country skiers take part in training ahead of the FIS Nordic World Ski Championships on February 21, 2017 in Lahti, Finland. (Matthias Hangst/Getty Images)
Photos of the day - February 21, 2017
https://www.yahoo.com/news/photos-day-february-21-2017-slideshow-wp-232659432.html

Cross-country skiing (sport) - Wikipedia

越野滑雪