Hi Tiffany,
Thank you for visiting the Disney Parks Moms Panel with your question. Having a large spread of ages while visiting Walt Disney World can be really fun. With some advance planning, I think you will have a great time!
I suggest that you begin each day with some attractions that all of the children in your group can enjoy. Using Magic Kingdom as an example, you might ride Jungle Cruise, Peter Pan's Flight, the Walt Disney World Railroad, and so on, choosing attractions during the morning that all ages can enjoy. For lunch, head to one of the amazing restaurants that everyone can enjoy. A couple of my favorites at Magic Kingdom are Be Our Guest Restaurant, or for a character meal, The Crystal Palace. In the afternoon, you can focus more on rides that the older children might enjoy. If you have other adults in your traveling party, they could head back to your resort with the little one to rest and relax. If you are the only adult with your party, you will need to stay with the children because
children under 14 years old must have an adult with them in a Walt Disney World theme park; however, since your older children are over 7 years old, they will be able to experience attractions without you. Your little one could rest in a stroller with you while the older children experience attractions such as Big Thunder Mountain Railroad and Splash Mountain.
I believe that this general plan for experiencing the theme parks will work at any of the Walt Disney World theme parks; I was simply using Magic Kingdom as an example. I suggest that you allow the older children in the party to view the
Walt Disney World planning video online to get some ideas of attractions that they would like to experience.
I hope that these thoughts are helpful for you, Tiffany! Please do let us know if you have any further questions.