Hi Daissel!
Thanks for your question and welcome aboard!
Guests are welcome to bring
non-perishable snack foods and drinks sealed in their original containers in their carry-on luggage. That includes bottled water! I'd recommend choosing a carry-on bag no larger than 9" x 14" x 22" to easily fit in the security scanner. Also, please know that your stateroom won't be ready as soon as you board so you could be carrying your water with you for a while.
I like to bring a refillable bottle to stay hydrated on board. The drink station on the pool deck is a great way to keep your beverage of choice handy! But I do understand that it might be nice to take disposable bottles on Port Adventures. If you decide not to carry water onboard with you there are a couple of ways to purchase it. First, you can order it in advance from
Onboard Gifts to be delivered to your stateroom. You can also often purchase bottled water (in an adorable cooler bag) on the ship near the pool or just off the ship if you're visiting
Disney Castaway Cay. Since we're talking about your carry-on bag, there are a few other
key items to make sure you keep with you on embarkation day. You'll want to have your travel documents and identification, any medication you may need (in the original containers), sunglasses, and your swimsuit so you can start having fun in the sun right away!
Cheers, Daissel! I hope you have an amazing cruise!
Keep moving forward!
Amanda