Nautilus Submarines & Diving Systems is offering what it calls the world's first luxury submarine, the Nautilus VAS. The retro-futuristic craft with its lines out of a James Bond film features a bathroom, full size stairs (versus a ladder), minibar, digital entertainment system and standing room ceiling height. The Nautilus uses large flat, distortion-free optics which translates into crystal clear vision for passengers of the VAS, whereas most submersibles use curved domes or viewports which distort the natural beauty of the undersea world and can also create a degree of vertigo and/or nausea. The VAS is also the only private submarine offering the option of a Diver Lockout which allows you to exit and re-enter the submersible while underwater. The Mk III version carries five passengers, can do up to 6 knots and is available in lime green.