Yes, you can absolutely bring water bottles on a Disney Cruise in 2026, but they must follow specific packaging and carry-on rules. Disney Cruise Line allows guests to bring an unlimited number of sealed, unopened water bottles as long as they are in their original factory packaging (such as a 12-pack of plastic bottles). Crucially, these must be carried on by hand; you are strictly prohibited from putting beverages in your checked luggage, as the weight and risk of leaks can damage other guests' bags and the ship's sorting equipment. Many families find this "pro-tip" useful for saving money, as bottled water on the ship can be expensive. In addition to bottled water, you can also bring a reusable water bottle (like a Hydro Flask or Yeti) to fill at the complimentary beverage stations located on the pool deck. These stations offer free filtered water, soda, and ice 24/7. If you are bringing a larger amount of bottled water, it is highly recommended to use a small rolling suitcase as your "carry-on" to transport the heavy packs to your stateroom, as you will be responsible for carrying them until your room is ready in the mid-afternoon.