>>2843482
Depends on the aspect. Scrambles aren't all that difficult, though over large areas they can be tedious. It's really the altitude that's the issue. There's a secondary issue of temperature, which is made worse by altitude since chemical reactions can be different due to the lower oxygen levels and cold. Batteries fail and heat packs stop producing. Layers are the main way to deal with it.
The fun part is that after you summit and start your descent, you pass through a vast expanse of scree on a decent slope. You can pretend you're hopping around on the Moon while flying down the scree slopes rapidly.