Personal subs have tended to be acrylic spheres with pontoons, the bulbous transparent capsules offering exceptional views, but not much interior space. Besides looking clunky, these subs typically ...

There are a handful of ultra-high-net-worth pursuits that sound tempting, but don’t really make sense. They’re typically wildly expensive and operationally inconvenient. And always difficult to ...

MUSKEGON, MI -- A display of six "personal submarines" drew lots of interest and lots of admiration Saturday morning at the USS Silversides Submarine Museum on the Muskegon Channel. The mini-subs, ...

But the price tags, size and weight of the underwater craft have kept most potential buyers away from ownership. You have to be a billionaire and own a very large superyacht. Until now. U-Boat Worx’s ...