In the first ep of the new series of Dylan Graves’ Weird Waves, we find him in Alaska, trying his hand at all kinds of frozen novelty waves.

First up, a little jaunt on Alaska’s longest river bore, accompanied by a hardcore local in a shark onesie that he may or may not have got from Primark. Then, a boat trip with Alaska’s premier surf explorers, to attempt to catch waves by glaciers breaking away into the sea, with a bonus breakdown of the turbulent dynamics that underpin this oddest of surfing experiences.