Often times surfing in Alaska doesn’t actually feel that extreme. Wetsuit technology is so good these days that being too hot is more often the problem than being too cold. And that’s without a battery powered heated vest.

But this day was. Extreme. Ridiculously so. So it is no surprise that National Geographic thought it was a natural for the Extreme Photo of the Week. Get a sweater on and a hot cup of chocolate and then read all about it.

Gart Curtis surfing Alaska in winter.