If that is really all you want, either get a job where you get to go climbing and mountaineering as part of your job. Or reorganise your life you that you can live off of whatever you can earn in 4-8 month of working and then spend the other 4-8 month climbing.

I like to pretend that all I really want is to go skiing, but it turns out I also want to live in a nice house and be with my family. And for some reason I actually want that more.