Hi there, Maureen!
Welcome to planDisney! We're so happy that you came to us with your question! I think adding a Park Hopper option to your tickets is a wonderful idea. Guests are now able to begin Park Hopping as early as 11 a.m. so you can maximize your time in both Parks!
Ticket changes may be made in person at the Main Entrance Ticket Booths in the Esplanade. Just stop by on the day of your visit and speak to a friendly Cast Member who will be able to help you out! I would recommend getting there early because it can get a little congested in the mornings and you'll want to get as much time as possible in your starting Park.
Don't forget to make
Park reservations and
dining reservations for your trip! If you're a Marvel fan,
"Rogers: The Musical" will be debuting at the Hyperion Theater in Disney California Adventure on June 30, 2023! And if you have little Mouseketeers with you, I would recommend taking a ride on
Mickey & Minnie's Runaway Railroad over in
Mickey's Toontown! In fact, it's a great attraction for all ages and one of my favorites!
Maureen, I hope you found this helpful and that you have a magical visit to the Happiest Place on Earth! Please visit us again anytime if you need anything further.
We'll See Ya Real Soon!
-Al