You cannot bring anything with a heating element, including irons, steamers, electric blankets, coffee makers, humidifiers, and hot plates, just to name a few examples. The single biggest danger on a ship is fire, and Carnival doesn’t want to take any chances.

Hiding tiny rubber ducks has become a popular practice on cruise ships. Despite calls to ban it, Carnival hasn't. Their brand is tied to "fun," and ducks align with that.

Cruise vacations just got even better thanks to Carnival Cruise Line's new rule to stop 'chair hogging' forever. Here's why passengers love this change.