There is all kinds of desert/mountain terrain and for the most part, you have to look out for rattle snakes, scorpions,
gila monsters, and lack of water. Some of those peaks are at or above 14,000 ft.... not exactly the same, but just as remote.
We took a cruise a few years back. Before we pulled into port, we were told that it is safest to walk and where we should and shouldn't go. We were told to not take "water taxis".