To make his private island even more exclusive, Richard Branson has added an “underwater plane” to the compliment of luxuries at his ultra exclusive Necker Island. The billionaire entrepreneur, recently ranked the world’s 212th richest man, gave the Oprah Winfrey Show unprecedented access to Necker, his 74-acre Caribbean island. He gave presenter Nate Berkus a tour of his home, which he has recently finished building, his cliff top guest house and his extravagant toys. The submarine uses its wings to create downward lift underwater and is fitted with scuba gear for its pilot and two passengers. ‘It’s like an airplane that flies underwater, a little fighter plane,’ Branson said.