New Travel

There's a way to travel on the ground, there's a way to travel in the sky, but how about on the wall? I appose a grappling hook,ice axe, or anything that you could use to grapple or stick to a wall. Imagine how cool it would be to swing up mountains, how helpful it would be for getting high up ores, and how amazing you would feel if you used it for a cluch save. The point is that a new why to quickly go through a narrow revenues or deep caves without making a entire mine shaft or risking the safety of you're horse/donkey sounds pretty cool.

P.S. Clinging to wall sounds so cool.