Hear the word “yacht” and you are likely to envision a large pleasure boat anchored somewhere in paradise. Your favorite movie star is sipping champagne, surrounded by bikini-clad women and shirtless dudes snapping selfies. Guests returning from the Cannes Film Festival step off the ship’s helicopter and onto the helipad, ready to join the party.
But for VIPs eager to escape the long lens of the paparazzi, yachting has become a source o...