These islands are owned by the cruise lines and are for the exclusive use of their guests for the day. Since there is never any more than one ship in port at a time, the islands are not crowded so each guest can go off and relax in their own private piece of paradise. The following Cruise Lines have Private Islands for their guests:
- Castaway Cay, Bahamas - Disney Cruise Line
- Half Moon Cay, Bahamas - Holland America Line
- Great Stirrup Cay, Bahamas - Norwegian Cruise Line
- Princess Cays, Bahamas - Princess Cruises
- CocoCay, Bahamas - Royal Caribbean
- Labadee, Hispaniola - Royal Caribbean