"Saunas aren't that high-tech," he says, the amused look never quite leaving his face. "Heat the rocks, pour water over the rocks, steam. Repeat."

Scratch shrugs.

"I'm surprised more people don't build them. If you can get a fishing hut up over the ice, you can get a sauna." A pause. "I don't know how easy it is to find stones under all this snow, though."