Snowshoes are great for most things but they aren't as fun when it comes to taking advantage of potential energy. If you're planning a trip that includes uphills, bring an inner-tube along and use it to slide down the hills. Better yet, take the kids tubing and get a workout at the same time by pulling them up the tubing hill and then running down alongside them.
Practice Safe Slopes Safety while downhilling comes from good fitness, proper equipment adjustment, hypothermia avoidance, hydration, and sunscreen use.
The Science of Keeping Warm With this guide to layering, you'll prevent your digits from becoming numb while working out in the cold.