If you’ve got the cash, you can have your own personal submarine. The Deepflight Dragon Submarine ($1.5M) takes underwater flight to the next level. Touted as the easiest underwater vehicle to pilot, the Dragon’s DeepFlight Dive Manager (DDM) allows you to pilot the craft with little training. You can even set the depth limit for any particular dive. Dragon is also the first craft to offer hovering capability. This feature allows you to cruise alongside large animals or just hover over shipwrecks. The engine consisting of quad brushless DC thruster and an underwater lithium battery back allow you up to six hours of operation between charges. And because it weighs just 1800 kg and is only 5 meters long it can fit on more yachts that any other sub.