Going on a cruise in December can be a fantastic idea, provided you choose the right itinerary and manage your expectations regarding cost. For many, the main draw is "holiday magic"; cruise lines like Disney, Royal Caribbean, and Norwegian transform their ships with massive trees, festive decor, and holiday-themed menus. If you sail in the first two weeks of December, you can often find some of the lowest prices of the year, as it is the "lull" between Thanksgiving and Christmas. However, if you choose to sail during Christmas or New Year's weeks, be prepared to pay the highest premiums of the season, as these sailings are often booked a year in advance by families. Destination-wise, December is the perfect time for a Caribbean cruise to escape the winter cold, though the Atlantic can occasionally be a bit "choppy." Conversely, European river cruises in December are famous for their Christmas Market itineraries, which offer a cozy, festive atmosphere unlike any other time of year. Just be aware that flights to the embarkation port during the holidays will also be significantly more expensive and prone to winter delays.