Hi Elizabeth,
Thanks for stopping by the Moms Panel to ask your question! During our most recent Walt Disney World vacation, I carried my then 9 month old baby. There are so many attractions and shows you can experience while wearing your baby. If an experience says that it's suitable for any height, you should be able to use your baby carrier. If an attraction has a seat and is slow-moving, it would be a perfect ride for baby wearing. We had the most luck with attractions within Magic Kingdom Park. We also enjoyed many of the stage shows, Kilimanjaro Safaris at Disney's Animal Kingdom, and even Toy Story Mania at Disney's Hollywood Studios.
If you'd like a helpful list of the attractions that are practically perfect for little guests, check out this webpage:
Planning for Pre-School Kids & Little Ones.
I hope this helps you, Elizabeth. If you have any other questions about babywearing in the parks, or any other parts of your vacation, please feel free to ask us anytime.
Have a fantastical Disney day!