Track Skiing and Snowboarding with the Apple Watch
With watchOS 4.2 and up, the Apple Watch 3 can track skiing and snowboarding activity.
With the Apple Watch Series 3 you can see stats and even find your friends on the slopes. The watch can track;
You'll want to get the snoww, Slopes, Squaw Alpine, Snocru and Ski Tracks apps to start tracking this info on your Apple Watch. This will add activity to your Activity Rings and to the Health app.