Someone mentioned Tracy Arm. In AK, when you are cruising through the glacier bays, the ship moves very slowly. However, on the Caribbean cruises, especially on the first day of sail, the Fantasy and Dream tend to be hauling keel and I've found the upper decks to be crazy windy, especially at the rail. You may be fine towards the mid-line of the boat, but I also would not count on being able to wear a hat at sea.