You wont be able to bring flammable liquids and explosives on board a Royal Caribbean boat. Lighter fluid and fireworks are banned as a result of this. Hookahs, otherwise known as a shisha pipe, are banned. Water hookah pipes are also prohibited.

Some passengers have been surprised that they like one of the cruise line’s private destinations much more than the other.

Royal Caribbean hears from its loyal passengers when the cruise line makes a move they don't like. Many "Loyal to Royal" cruisers, for example, have expressed their displeasure with the cruise line's recent decision to move most of its Oasis-Class ships to shorter 3- and 4-day sailings.

Cruise vacations have long been the crown jewel of impulsive, sunburnt decisions made by young adults ready to conquer the high seas. But alas, the party may be over (or, at least, it’s RSVP-only now) for travelers aged 18 to 20.