Ice surfing, also called Ice Sailing or Snofering, is a lot like windsurfing, but you ride ice instead of waves. It's a hybrid sport mixing the speed of snowboarding with the agility and power of wind surfing.
The board is similar to a skateboard, with ice blades in place of wheels. You're propelled across the ice with a windsurfing sail, and you steer with your feet.
What makes Ice Surfing so much fun is the amazing play between the sail and the wind. The continual and direct balance between your body weight and the pull on the sail induces a tremendous sensation of speed and motion.
If winter is a bitter and miserable time for you, you've got to get out and embrace it. There are so many fun and incredible things to do on snow and ice, and this just might be the thing that gets you hot for winter.
If you're in the Ontario, Canada area any time soon, you can take a lesson on Lake Simoce. It's one of the windiest lakes in the area, and it's cold enough for the lake to be frozen 1-3 feet thick.