First off I'm very happy to hear of this miraculous diver survival. 3 days adrift is beyond astounding. Though, since it is the incidents and accidents forum we always have room for analysis. My #1 thought is if only this diver had a signal marker, reflector, horn ... anything to draw attention to his location when he surfaced "out of site" ... additionally as rescue vehicles came within his vacinity he would have had a greater chance of drawing attention to himself.