Hey Howdy Hey Cassandra and welcome to planDisney!
I bet you all are getting super excited for your upcoming trip to the Most Magical Place on Earth just days away! Thank you for stopping by with your question about re-entering the parks on the days of your visit. With 3 kids of variable ages, this has been a concern for us in the early days of theme park navigation. I will be happy to give you the scoop on the rules for re-entry.
Cassandra, if you have one-day park admission to any park, you are more than welcome to leave mid-day for a break and then return later that afternoon/evening. Your ticket will not let you into a different park other than the one you initially checked in to, but you can leave and then return to the same park, pending crowd volumes. There have been times when crowds do hit capacity limits and further entry is paused, but this does not usually happen outside of the Christmas and New Year's seasons when the parks are at their busiest but can be a possibility.
We have been taking our 3 girls to the parks for several years at variable ages. We feel most times we are prepared for the day but there have been several times when we get in the parks and realize we forgot something in our hotel room or ran out of something. I wanted to let you know about the
Baby Care Centers in each park. These areas are made for parents of little ones. At these locations, you can find areas to decompress from the parks, areas to feed your children or let them snack while they have their own space watching their favorite show. They also have things available for purchase such as diapers or wipes in case you run out. These areas can be lifesavers if you end up forgetting something, running out of something or just need a little downtime away from the stimulation of the parks during your visit!
I hope this information was helpful so you can better prepare for your Magical vacation to the Most Magical Place on Earth just days away! Please feel free to stop back and let us know if you have any further questions, we are always happy to help.
Have a Magical day,
Nick