Hi there, Marlana!
How exciting that you're starting to plan a spur-of-the-moment Walt Disney World vacation! I think that seeing Walt Disney World through a baby's eyes is such a completely magical experience!
There are lots of
Attractions throughout all 4 of the major Theme Parks where people of any height are allowed to ride. You'll be able to hold your baby right on your lap! I did a search where I selected the 4 Parks along with the '
any height' category and I've linked above to those search results so you can see just how many fun and amazing Attractions you'll be able to bring the baby on. There is also a fantastic section on the main Walt Disney World site called
Traveling With Little Ones where you can find all sorts of incredibly useful information.
One more bit of information that I want to share with you is that each of the 4 major Theme Parks have
Baby Care Centers conveniently located within the Park. It will be real important that you check the maps on the link I provided so you know just where they are located in case the need arises. You will just love being able to walk into a beautiful, air-conditioned oasis to change and feed your baby. It's really awesome just to take a break from the heat and humidity outside as well!
Thanks so much for stopping by the Moms Panel with your question, Marlana! Please don't hesitate to write back in if we can help with any other questions you have.
Wishing you a Pixie Dusted vacation!
~Jackie