Hello and welcome to the Disney Parks Moms Panel!
Unfortunately, wagons are on the
restricted items list for all
Walt Disney World Theme Parks. It would be a great idea to review the list prior to your arrival. With every one of my WDW vacations, I always tend to refer back to the restricted items list to see if anything new has been added since my last visit.
Diane's Tip of the Day: If you have little ones, I highly recommend
renting a stroller from any of the four WDW Theme Parks. Strollers can be rented daily or you may purchase a multi-day rental for a discounted rate. I have always been a big fan of their strollers as they are very easy to maneuver. However, you are always welcome to bring your own stroller as long as it is no larger than 36" x 52" (92 x 132 cm). If you choose to bring your own, I suggest tying a bright colored ribbon or attaching a balloon to your stroller. You will see a "sea" of strollers and you will want to be able to spot yours quickly.
Have a MAGICAL day and "SEE YOU REAL SOON!"
~Diane G.