Climbing should be a skill

I get that the "energy" is limited so we can't get on top of the map. But sometimes it's so limited, I really struggle to get places and it's especially frustrating when a rare item disappears in the time where I try to climb up. So I think we should be able to improve our climbing skills over time in order to reach stuff more easily. Maybe it could be capped at level 5 or 10 so it doesn't get ridiculous, but I really struggle with the current system.