I discovered this site while browsing today. It is for the Jules Underwater Hotel. I wonder if I can get a grant to build one of these babies close to Vancouver? One fundamental difference between this and the idea I envisioned is this one maintains constant pressure with the water, where my idea was more like a submarine, where pressure in the living quarters was kept the same as sea-level. This approach looks to be much simpler in principle. Of course, I would have to teach Holly how to dive, if only so she could properly decorate the place.
New goal: to become an aquanaut.