Your own personal U-Boat – developed by U-Boat Worx, this small sub is based on a unique concept called the “Underwater Boat”. The concept combines the characteristics of a submersible -“the underwater (U-) part”, with those of a normal vessel ...

The Dolphin Watercraft is fully submersible vessel designed by Innespace to mimic the look and abilities of a dolphin. Currently, dives are restricted to just a few feet below the surface, but deeper dives may be possible in the future ...