Have you tried getting the snow gear from the dwarves? It may take repeating quests with them. That and learning a warmth potion
I'm gonna try it, I tell ya if it worked, tyy <3
Omg how I was that stupid to not think about the warmth potion 😭, I did some jobs, then I realized that i already had the snow gear and when I drinked up the potion it got me right to the yeti 😭❤️ tysm