Is this the guy that claims to be doing his own photography, sound, and all that? If so, I've seen a few bits of it and don't buy into it 100%. My guess is that he's never alone--always got somebody standing by to lend a hand, offer a suggestion, keep an eye on him to make sure he doesn't screw something up and die. Most of those sort of adventure shows will have a film/support crew of at least 2 or 3 traipsing along with um.
--Ediger