What’s the big difference between those and a normal water-scooter/jet-ski? I can se that it looks more like a snowmobile, with the front-ski/runner, but how does that affect maneuverability?
I guess they’re cheaper than jet-ski’s, since they cost a fortune.
An alternative if you just happen to have a snowmobile lying around, is to just use that instead, that’s what guys in northern sweden do. (and i guess US too)