In the movies, you need a team of people to drive a sub. In the Deepflight Dragon Submarine, all you need is yourself. This two-person craft uses proprietary technology to monitor and manage critical functions, letting you pilot it with minimal training. It can dive down to 400 ft under the surface, uses its quad brushless DC thrusters to let you hover in place, and its lithium-ion battery pack is good for up to six hours per charge. It weighs only 1,800 kg and is only 5 m in length, letting it work with most standard yacht tender systems, and should something go wrong during your adventures, it has a fixed positive buoyancy, so it will always float back to the surface even if it runs out of juice.