Ok, it's not really a craft in the sense that anyone could decide to build an underwater lodge and then do it, but it is awesome! Also, it does have that "two kids with a crazy idea and a passion for something" feel about it. I'm not even a diver and I want to visit the place! This from the site:
"Just to enter the Lodge, one must actually scuba dive 21 feet beneath the surface of the sea. Jules’ really is underwater. Diving through the tropical mangrove habitat of the Emerald Lagoon and approaching the world’s only underwater hotel is quite an experience. Even from the outside, Jules’ big 42 inch round windows cast a warm invitation to come in and stay a while, relax and get to know the underwater world that so few of us have even visited."link Let me know if you've gone there. I'm dying for a first hand account of the place.