(TrendHunter.com) U-Boat Worx, the Netherlands-based submersible company that caused a literal and figurative splash with the advent of its ‘Cruise Sub' tourist vessel, is now introducing an expanded and... (TrendHunter.com) U-Boat Worx, the Netherlands-based submersible company that caused a literal and figurative splash with the advent of its ‘Cruise Sub' tourist vessel, is now introducing an expanded and...