>>37408565>since it already happenedYou are not talking about Sinnoh, are you?
Only the northern part of the map is cold, and that consists of like 2 routes, a lake and a city.
The only other real cold places in Pokemon games were in the Ranger spin-offs. God i loved the athosphere of the colder places in Ranger.
The music was so nice
https://www.youtube.com/watch?v=3YlN5-BVfNw