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Cross-country skiing is a sport of skiing over the countryside rather than on downhill runs.
It can also be called Nordic Skiing...
It is not exactly clear when cross country skiing was invented as a competitive sport. It is accepted the first competitive races were held in Norway in 1879 and it has grown from there.
langlauf
No jet skiing is not a sport.
Cross country skiing is a Winter Olympic sport. Cross country cycling is a Summer Olympic sport.
Cross country skiing.
Cross-country skiing has been used for centuries in colder climates to get from one location to another.
"Nordic Combined" - an Olympic sport combining the events of downhill skiing and cross-country skiing
Yes, water skiing is considered a sport.
Biathlon consists of rifle shooting and cross country skiing. It would be a winter sport and there is competition in biathlon at the Winter Olympic Games. But, there are some biathlons that are on roller skis, but these are mostly training, and aren't really a sport.