Hello Robert,
Thanks for stopping by planDisney with your question. It looks like your magical vacation is just around the corner!
Currently, there is no way to modify a theme park reservation. In order to make the change you'll need to cancel your existing park reservation and rebook for a new park. You can cancel your reservation by looking under "My Plans" in your
My Disney Experience account.
Before you do that, check the
reservation availability calendar again just to make sure the park you want to switch to is available. As you may have seen, the parks have been extremely busy and there have been several weeks where the reservations for every park have been booked in advance.
If you've never been to the
EPCOT International Flower & Garden Festival, I hope you are planning on spending some time in EPCOT during your visit. The park is stunning right now with beautiful garden displays and whimsical character topiaries. The
Outdoor Kitchens have food to tempt every palate, and the
Garden Rocks Concert Series will keep your toes tapping. Plus, the new nighttime spectacular,
Harmonious, is the perfect ending to a Disney day!
Hope this helps. Have a magical vacation!
Diane