Oh man I totally remember going to Disney World and Epcot Center when I was a little kid with my parents.

Space Mountain was the best.

We must have gone to every single part of the Epcot Center too although it might be a bit different now because that was at least 20 or 30 years ago.

Stay hydrated and comfortable because somebody's bound to get crabby if they get tired or hungry or thirsty out there.

You might even consider bringing an umbrella if it's particularly sunny just to keep the heat off of you.