So much good stuff here! Big smile for "sofuckingcold that he wouldn't be surprised if a penguin stuck its head in the tent looking for frozen fish sticks because it is cold enough to keep them rock solid" and for Ray worrying that he'll "wake up with hypothingy". And I can totally see and hear it where "Fraser does that...patient thing, complete with the little sigh....".

And you have a gorgeous concluding sentence, evocative and sweet.