you should take a stroller or at least rent one for sure. We just went in December and I bought a double stroller for my 16 month old DD and my 4 year old DS. I was worried that I was throwing money away by buying a double, and that my son might not use it. Boy was I wrong, he used it ALOT. Disneyworld is huge, there is ALOT of walking, especially for little legs. He would hop right in and ride from land to land, and hop out whenever he wanted to walk or get on a ride. Plus it is a very long walk at the end of the day from the exit of the park to the disney bus, so we were very glad we had our own, since you're not allowed to take the rentals out of the park. Hope this helps.