This New Super Sub Can Dive to 1,000 Feet and Move Faster Than a Bottlenose Dolphin
The blistering-fast vessel can hit 8 knots at full tilt.
Submersible
U-Boat Worx
Marine
The 5 Best Personal Submarines
Personal subs have moved beyond utilitarian research vessels, with higher standards of luxury that make descending hundreds of feet adventurous and comfortable.
