What do Royal Caribbean, Disney, Norwegian Cruise Line (NCL), Holland America, and Princess all have in common, besides cruise ships? They all have their very own private islands. Private islands have become fashionable in cruising, with all of the aforementioned cruise lines offering these resort-style destinations to their guests. However, if private islands are a trend, then Norwegian is the trendsetter, having called Great Stirrup Cay in The Bahamas its own since 1977, becoming the first cruise line to turn an uninhabited island into a private port. I recently spent a day there — keep scrolling to see what it was like.