Some cruise lines — Disney, for example — are known for their kid-friendly ships. And while the luxury lines don't have dedicated year-round kids facilities, they do offer special programs during peak family travel periods — such as holidays and school breaks —  in some cases on on the most family-friendly itineraries. Sure, you can bring a nanny to entertain your children on board, but if you want the line to help entertain your children, read on for the details on their special programs.