Built by the Dutch company U-Boat Worx, the C-Explorer 5 mini-submarine has recently hosted the Russian President, Vladimit Putin, enjoying the tour of the wreck of OLEG, the flagship frigate of the Tsar, in the Baltic Sea.
U-Boat superyacht submarines will make their debut at Moscow Boat Show 2012, held from March 20 to 25 in Crocus Expo International Exhibition Centre.