No, as of early 2026, you cannot "check" a case of water with the porters at the cruise terminal; Disney Cruise Line policy requires that all water and non-alcoholic beverages be brought on board in your carry-on luggage. The water must be in its original, unopened packaging. This rule exists to prevent heavy cases of water from being stacked in baggage carts where they could burst and damage other passengers' luggage. Since you must carry it yourself until your stateroom is ready (usually around 1:30 PM), many 2026 cruisers recommend using a rolling suitcase or a small cart to transport the water. It’s also worth noting that filtered water, coffee, and soda are free 24/7 at the beverage stations on the pool deck, so many travelers now opt for a high-quality reusable bottle instead of lugging a 24-pack of plastic bottles through the terminal.