In wis/ MN there's a race Curcuit of snow mobiles on water in the summer months they have bouy's on them so if they sink they can be located and pulled out with a pontoon with a winch
When I was in Montana in my teens I was at this camp ground and the guy in the office showed me this news paper article of guys skipping water on their "snow machines" I said yea we do that in Wisconsin I got friend who have done it, he looked at me like I had horns growing out my head