Ahoy there Christina, and welcome to planDisney! Visiting
Disney Castaway Cay, Disney Cruise Line's private island, is a great way to spend the day.
There are plenty of beach umbrellas on Castaway Family Beach. The earlier you disembark from the ship once the Captain gives the ok to go ashore, the better location you will be able to secure on the beach. I am unfamiliar with the product you mentioned, so I looked it up, and the larger versions would be prohibited from being brought onto the ship, but the mini version for your two small buccaneers should be ok.
Contacting Disney Cruise Line directly is another option for confirmation so you can be best prepared and not have your item held until the end of your sailing. Don’t forget to pack hats, sunscreen, and rash guards too! You will receive beach towels on Disney Castaway Cay, so no need to worry about those.
There will be plenty of photo opportunities for you and your pirate crew with your favorite Disney Characters making appearances throughout your time on Disney Castaway Cay. You can also have lunch on the island at Cookies BBQ and Cookies Too.
If you have any other questions, Christina, sail back to
planDisney, where me and my pals will be happy to help.
Happy Sailing!
JoVonn