Virgin Limited Edition has recently introduced the Necker Nymph, a DeepFlight three-person aero submarine. The craft, designed and built by Hawkes Ocean Technologies' renowned engineer Graham Hawkes, represents "a new class of high-performance, positively-buoyant vehicle, which safely extend the overall capabilities of SCUBA, while offering the unique experience of underwater flight." Instead of using ballast water to sink, as is the norm in conventional subs, the Necker Nymph simply adjusts the angle of its wings to move to depth.

The technology isn't yet mainstream; to experience the Necker Nymph, you will have to charter the 105-foot luxury yacht Necker Belle, or be a guest on Necker Island. Access to the Necker Nymph is exclusive, but it is well worth it. The craft glides on the ocean's surface like a jet on a runway until one of three pilots uses a joystick to begin the descent. Once it is at depth, the craft is incredibly agile, capable of 360-degree turns; "wind screens" on the craft eliminate the pressure of the slipstream, so speeds are comfortable and occupants can experience a wider range of depths than ever before. Because of the elimination of pressure, the three pilots no longer have to be enclosed, so the cockpit of the Necker Nymph is able to provide nearly perfect 360-degree views. Dives can last up to two hours.

Guests adhere to standard SCUBA procedures and protocol and will be both trained and accompanied by a certified Necker Nymph pilot. The Neck Nymph has zero environmental impact - its positive buoyancy prevents it from contacting delicate reef surfaces, and its low light and noise emissions prevent disturbances to the reef ecosystem. Once launched, either from the Necker Belle or from shore, the craft is capable of reaching a depth of 30 meters (98 feet). Underwater, the Necker Nymph is capable of traveling at speeds of up to six knots.

Divers wear standard SCUBA equipment while in the craft, and the craft itself can complete roughly four dives per day. The craft offers an advantage for guests that may not have the dive training required to dive recreationally to such depths - no PADI certification is required. Guests must simply complete a half day training and familiarization course; guests that are PADI certified do not need any additional training. Safety is a priority on the craft, which adheres to the highest possible standard. The craft has its own generous backup supply of oxygen, and its positive buoyancy keeps it naturally afloat. Safety criteria for the craft were developed alongside international SCUBA standards.