I've been whitewater rafting and rock climbing but in eastern US; nothing big like Colorado or Utah and not by myself. I've driven thru rainstorms and thunderstorms with low visibility but usually close to home (less than hour). Although there was that one time on the way home from work in a snowstorm, took 3 hours but it was rush hour, so no one was getting home soon. My biggest adventure was taking a bus trip up to Tronto on my own back when I was in my 30's. I had never been anywhere by myself where I didn't know anybody yet alone out of the country. Hey, it was big deal for me back then. (There's a whole backstory - too much to go into here.) I had so much fun and would not hesitate to go anyplace by myself again.