When you think of novelty river waves, it's probably the Eisbach in Germany that is conjured up. Of course, if you seek, you may find a few others around – but have you ever cast a thought to, say, Norway? No? Well, for the first time, here's stark evidence of such a phenom and when the storms come good in Scandinavia, this is where you'll find a select crew of rippers. It's no wave pool - but having repetition of manoeuvres over and over again in a fixed arena sure is a handy tool.