Measuring 10m x 5.1m (33ft. x 17ft.), each undersea hotel suite comprises 51m (550 ft.) of floor space. The suites are built as detachable stand–alone modules that are placed when neutrally buoyant and mated to the main corridor assembly and were built to meet American Society of Mechanical Engineers Code for Pressure Vessels for Human Occupancy.
Each suite has an integral high–tech carbon fiber door that opens outward to maintain the unit's watertight integrity during installation or removal. The main corridor has a similar opposing door to insure the integrity of the complex. The release of the module is simply accomplished by closing both doors and flooding the space between.
Exceptional visibility is due to the use of transparent acrylic plastic (polyethyl methacrylate), a material that has been used frequently in deep submersible and aquarium applications over the past 20 years. The material is strong and remarkably transparent, and its characteristics are well understood. The resort's design takes full advantage of acrylic's ability to maximize viewing while maintaining structural soundness.
Steel wall structures are 25 mm (1in.) plate, which follow the same curve as the acrylic, which is 60mm (2.4in.) thick. Acrylic window sections are set into a steel frame and are 3.05m (10ft.) in length around the curve and 1.75m (5.7ft.) wide.