Thanks for visiting planDisney, Jennifer! I am glad to see you are doing some advanced planning! That is the best strategy for visiting the Walt Disney World Resort!
Guests with a valid admission ticket, as well as a park reservation made through the
Disney Park Pass reservation system, are allowed to leave and then re-enter a park in the same day! This is a strategy that has come to serve my family well! After enjoying breakfast at our
Disney Resort Hotel, we usually arrive to the park in time for park-opening. We enjoy a few of our favorite rides and then return to our resort for an afternoon break! My wife and I lounge by the pool with a few drinks while the kids play and swim! Later in the afternoon we head back to the same park we visited earlier in the day. We usually stay at that park until park-closing! Don't forget, at the Disney Parks, Guests can get in line for an attraction up until one-minute prior to park-closing time. Even if the park closes, you can still enjoy the ride as long as you were in line!
That is how we love to spend our Disney day! Jennifer, I hope this planning-strategy is helpful to you!
Hakuna Matata! Jonathan