Here at That's Fit, we're all about fitting in fitness during the holidays by finding ways to get the exercise we need -- even when time is short. It seems Kate Hudson is fanatical about fitness too -- she's spending her Christmas holidays hitting the slopes with her family.

According to Female First, Kate recently told reporters, "Every year we go to Colorado because we grew up there and we ski." Even her 4-year-old son is into the winter sport. Recalls Hudson, 29: "He [was] just zooming down the mountain and I started to cry. I grew up skiing, and then you see your kids ski and there's a freedom in it, it's beautiful." Good for Kate -- starting 'em young is a great way to get them fit for life.

Love skiing? Be glad you do -- five hours of skiing burns over 2,000 calories!