climbing walls or being stuck in the wilderness with a bike don't sound like fun at all. pointless. I don't think your suggestion is helpful for people that have depression. The metal working suggestion from parent is far more helpful, as you are actually making something.

Rock climbing is like solving a puzzle with your body. You can't just go straight up. You have to analyze all of the differently shaped holds and walls and figure out how to position your body to maximize your grip while minimizing the amount of energy you need to expend. There's also a difficulty rating system, so you feel rewarded when you manage to finish a new level. But if you're not motivated by leveling or puzzle solving, it's probably not for you.

I'm motivated by solving real problems, not artificial climbing wall problems, sorry.