Submarines' top speeds are different when they're underwater than when they're cruising on the surface -- and not always in ...

Have you ever wondered whether it's possible to own a personal submarine? It turns out that it is, but it will cost you millions and you may not be impressed.

The Dutch submersible builder has released images of one of the world’s fastest personal subs, with maneuvering capabilities that should make it a natural for the next Bond movie. More from Robb ...

In the market for a new submarine, sir? Uboat Worx have just ... not as a sub but to add extra fun to diving into your own personal sea that you have had made from poor childrens' tears, it ...