Meet Necker Nymph: an underwater aircraft for 3 people. It has space for 3 people and makes you feel as if you are flying underwater. Necker Nymph has space for two passengers on either side of a trained pilot. The submarine can go as deep as 30 meters. You will be able to see some amazing marine life. It can go as fast as 6.9 mph underwater. Worth a try, don’t you think?