Symscape

Uboatworx is selling personal submarines that are straight out of a James Bond movie.

C-Questers from Uboatworx

Starting at $82,000 for a 1 person vessel (about the same price as a Porsche 911) and requiring a 4 day training course, their C-Quester submarines open up an underwater playground. Well, at least the first 164ft (50m) of it, at 3-4mph and for as long as the electrical power lasts, which is about 2.5 hours.