Cruise photos (part 2) this is us out by the boat in castaway cay. Castaway cay has 3 beaches 2 family beaches and 1 adult only beach. There are so many activities here from snorkeling to parasailing, to massages and nature walks. The entire island is breathtaking! We saw stingrays and fish and even a sea turtle. Did you know that even though most cruiselines have their own island castaway cay is the only private island where the boat docks. Other cruise lines have to put their passengers into smaller boats and ferry them to the island. Even more fun, when you get off the boat in the morning the characters get off the boat with you all dressed up and ready for the beach!