Dear Susan,
Thank you so much for reaching out to us here at the Disney Parks Moms Panel with your great planning question!
I know that your boys must be very excited about their upcoming trip to the most magical place on earth! No matter which park you decide on for your fifth day, you cannot go wrong. Each of the four parks offers so many fun options. It depends on what interests your family has.
If your family loves the classic magic of Walt Disney World Resort, then perhaps a second day at the
Magic Kingdom would be best. Sometimes it can be challenging to visit all of your desired attractions in one day there.
On the other hand,
Epcot offers both Future World and World Showcase, so sometimes my family will take the time to take two days there alternatively.
If your children are animal- or nature-lovers, then perhaps
Disney's Animal Kingdom would be the best match for your second day!
If they love Star Wars, you may want to spend that fifth day visiting
Disney's Hollywood Studios again.
I hope that helps with your magical planning!
- Jan K.