This looks like fun, but also slightly dangerous.

A bunch of high school-looking kids rode a canoe down a snow covered hill and glided into a lake. The water had to be freezing. But that's not what I would have worried about. If the canoe tipped over I'm confident I could have swam, or walked, back up to the shore. But if I hit my head on the canoe and was knocked out that would be very bad.

I kind of hate that I look at stuff that would have been a blast when I was young through my "dad eyes."