Is it cold in Glacier? What's the temperature? Do I need to wear thermal underwear ?
3 Answers
No, it's best to have waterproof and breathable storm jackets and pants.
When you walk on the glacier, you are not cold, and you may even sweat. But if it rains, it's hard to say, you are sure to be soaked.
I went last week, it was sunny, the guide was wearing short sleeves, I wore a thin sweater and a windbreaker, and finally I was sweating and took off the windbreaker.