Not a diving show, but in one of the earlier episodes it shows a couple people diving the icebergs off Baffin Island. Two things stood out - first, a rather thin woman diving in what looks like about a 5mm wet suit. Second, they're diving between a berg and land, and there's about 20' of water between the berg and the land. Now maybe I'm overly cautious, and maybe this was all staged, or it's the camera angle, but I'd be leery of getting crushed in between there.