1 Dwalin: We cannae go north. That's thu land o' thu ice giants. {translation: We can't go north. That's the land of the ice giants.}
2 Mordekai: We can't go south. That's the realm of The Necromancer.
3 Alvissa: But we have to get east across these mountains into the Swamp of Terror!
4 Lambert: Would now be a bad time to bring up the idea of west?

It's a tough choice. You don't want to mess with ice giants. It may not be canonical in any real sense, but I always get the feeling that ice giants would be nastier than any other type of giants.