The former crew member admitted to planting small cameras in cabins to catch record passengers, including children, nude.

Some cruise lines, like Norwegian and MSC Cruises, sell cruises that are more inclusive than the fully a la carte lines, including Royal Caribbean and Carnival Cruise Line. Newer cruisers don't want to miss out and that can lead to some purchasing mistakes.

A Royal Caribbean crew member, Bryan James, a guitarist for the cruise line, shared how birds are kept away from cruise ships when they're in port. It's actually a fairly ingenious method that you may not have even noticed when you're on board.

Both cruise lines have added a number of items to their banned list, while Norwegian Cruise Line bans an item that no other cruise line does.

Guests sue Royal Caribbean after a crew member secretly filmed them with a hidden camera on Symphony of the Seas.

Royal Caribbean's The Key offering, for example, comes with internet access along with early boarding, a special lunch and a few other perks. That's not something most passengers need, but sometimes it's priced close to what the internet costs on its own.