Richard Branson's DeepFlight Merlin, built by Hawkes Ocean Technologies, seen under water. The vessel, known as the Necker Nymph, glides "on the water's surface like an airplane on a runway...[One] the three pilots will operate the joystick to smoothly dive down, and the thrilling experience begins," Hawkes Ocean Technologies says of the DeepFlight Merlin. "Uncover ancient shipwrecks, fly side-by-side with dolphins, or spyhop with whales; the options are endless. With the flexibility to glide peacefully over glorious reefs or bank adventurously in 360-degree turns, the sub is hydrobatic. Individual 'wind shields' remove the pressure of slipstream, enabling comfortable speed and ranges previously unthinkable without enclosing the pilots. The open cockpits afford near ideal 360-degree viewing for occupants, creating a uniquely open experience."