Welcome to planDisney, Diane! I'm so glad that I can answer this question for you right before you head off for your trip to Walt Disney World Resort in a few weeks.
Disney Park Pass reservations are a part of our world now, so I'm happy to help walk you through what you need to do if you've changed your mind and would like to visit a different Theme Park than you chose originally.
If you would like to change your Disney Park Pass reservation, you're more than welcome to do so. In order to free up that day to be able to choose a new Theme Park, you need to first cancel the reservation you already have using
My Disney Experience. Once you've done that, you'll be able to select from the rest of the Theme Parks with availability that day.
This calendar shows which Theme Parks still have Disney Park Pass availability so you can double-check before you cancel the ones you already have. Your reservation is flexible and you're welcome to change it before your trip if you change your mind again! You won't be able to get a new reservation once you've scanned your
admission and entered a Theme Park for the day, but any point before that is fair game to make the changes you want.
I hope this answers your question, Diane, and please let us know if there's anything else we can do to help you plan your magical vacation!
Jessica