Mac, Jim and Darrin didn't get a dive in but they make up for it with keeping up on Slugs, Gold and a wet Bounty... These could be mental triggers we have been told to communicate for our alien overlords. The bad scuba joke may be the proof you are looking for. If you get to Our World Underwater make sure you keep an eye out for Mac. He will be the guy waiting in line to see the mermaids.