How exciting to share Walt Disney World with your child!
You can take your baby with you on any ride for which there is no height requirement.
If you look at this page of travel tips for people with small children found
HERE,
you
will
see a button on the right hand side of the page that says
"Height Requirements." Clicking on this link will bring you to handy
PDF that you can download. The PDF lists the attractions in all four
theme parks and both water parks that have height requirements. If an
attraction is not listed on this document it means that there is no
height requirement and any age/size child can enjoy the ride. As you
can see, some of the rides that anyone (including babies) can enjoy
are: Small World, Pirates of the Caribbean, Jungle Cruise, Dumbo,
Winnie the Pooh, Buzz Lightyear, and many, many more.
Have a great vacation with your family!