Welcome to planDisney, Hilary! Thank you so much for bringing a question our way!
I am so pleased that you are inquiring about upgrading your One Park Per Day Theme Park
ticket to include the Park Hopper Option. Doing so will allow you to experience even more magic! Like the all-new
Avengers Campus at Disney California Adventure Park and the return of nighttime fireworks at
Disneyland Park!
To upgrade your One Park Per Day Theme Park ticket to include the Park Hopper Option, you will have to request this change in person at the Disneyland Resort Main Entrance Ticket Booth. Please note this upgrade is subject to availability. I recommend checking the
Availability Calendar to see if the Park Hopper Option is available on the date of your visit. If available, you will be able to park hop at 1:00 p.m. You are not required to make an additional theme park reservation to visit the second park or hop back and forth between both parks. But, as always, theme park admission is subject to attendance availability as well.
Thanks again for stopping by to see us here at planDisney!
Tiffanie