Atlantis Resort, on Paradise Island, across the bridge from Nassau, The Bahamas, is not nearly as expensive as someone said on the show, but it is definitely overpriced. Except for the water park and aquariums. The multiple aquariums are spectacular and well worth the price of a day pass. The food at the main buffet restaurant is good but not great, and is also overpriced, and you can wait an hour or more in line to get in. But there's a Subway and other restaurants just outside the resort.
Apologies if this is not the resort referred to on the show.
In shallow water a short boat ride out from Bimini Island, also in The Bahamas, there is a series of huge flat rocks or concrete slabs that the lunatic fringe calls "Atlantis Road," claiming that it is the remains of the Lost City of Atlantis, apparently oblivious of the fact that the mythical city was in the Mediterranean. It's a nice snorkeling spot.