Ahoy there, Joseph! I'm glad you found us at planDisney to answer your question.
It is necessary to stay hydrated while cruising! You can bring water bottles in your carry-on luggage. Disney recommends that your carry-on bag not exceed 9" x 14" x 22" so that it can pass through the security scanner. Depending on your
Port Arrival Time, you may not be able to go straight to your stateroom, so you will need to keep the water with you. I suggest a roller bag instead of carrying the water around.
If you decide that you would rather purchase water instead of carrying it around, you can do so before your sailing by going to
Onboard Gifts on the Disney Cruise Line website. You will need either your reservation number or departure date to access Onboard Gifts. Currently, you have options to purchase 6, 12, or 24 bottles. My family and I normally do this, and the water is waiting for us in our stateroom on embarkation day. Bottles of water are also available for purchase throughout the ship.
Joseph, if you have any other questions, do not hesitate to sail back to
planDisney. We are here to help!
Adventure is out there!
JoVonn