Hi Stephanie! Welcome to the Disney Parks Moms Panel!
In just a few days you will be at "The Most Magical Place on Earth!" Yay! Between
Mickey & Minnie's Surprise Celebration happening now and the
Epcot International Flower & Garden Festival beginning the day before your trip, there is a LOT of fun awaiting you!
You are welcome to bring a bag with you to the Walt Disney World theme parks as long as it is not larger than 24" long x 15" wide x 18" high. You can see a list of all prohibited items on the
Park Rules, as well. My family often brings in either a diaper bag or a backpack with essential items like sunscreen, ponchos, and snacks. When my
kiddos were younger, we also packed diapers, wipes, and a change of clothes in our bag. All bags have to go through the security bag check (even if they are small, see-through, etc.), so be prepared for that. It helps speed things up if you have your bag open, as well as all compartments open, when you reach the check.
I hope this helps with your planning, Stephanie! Please let us know if you have any other questions.
Tabitha