Today, I tried the snowshoes. I wore the Garmin 305 mainly to check my heart rate. I wanted to see if snowshoeing was a reasonable cardio workout. Turns out that it is, as the data below shows (click it for full resolution). When I walked the same route a few days earlier with no snow, my heart rate averaged 102 bpm. It does seem that I could stand to do a few sprints here and there to liven things up.