Hi Julie! Welcome to planDisney! I'm glad you found us to ask this question.
The surprise you have planned for your family is so magical. I have great news! I just checked the
Theme Park Reservation Availability Calendar and as of this moment, there are
theme park reservations available for
Disneyland Park on your arrival date. The calendar does update in real time, and availability can change, so I highly recommend buying your
theme park ticket right away. When you purchase the theme park ticket, you will be prompted to select a theme park and, in the process, will make your theme park reservation.
I'm wishing you faith, trust, pixie dust, and luck as you finalize your plans to celebrate with your family. Be sure to stop by City Hall on Main Street, U.S.A. to pick up a complimentary birthday button from your grandson. I would also recommend having a
Disney PhotoPass photographer take a photo of your family to capture this special time together.
If you have more planning questions before you arrive, please stop by
planDisney again. You've got a friend in me and I would be happy to help!
Wishing you magic,
Lisa