The Man vs Wild guy is a total poser who fucks up at least twice per episode.
You remember the internet meme "one does simply *blank* into Mordor"? Yeah. He walks up to a Hawaiin volcano, claims it's Mordor, then goes back to his hotel room for the rest of the evening.
Actually, speaking of Hawaii, in addition to rolling in dirt to look like he actually does something besides drive out to a spot and pretend to be 'surviving' there, in one scene he "spends all day" hiking across rugged terrain from one volcano to another in Hawaii.
An Arfcommer who lives a mile from the location assured us he simply walked across the parking lot so he'd have a different backdrop.
I'm not even getting into the whole "I won't drink water from a puddle, but I will suck the juice out of elephant shit" thing.