Hi, John!
Thanks for visiting planDisney! You'd be surprised how much you can do at the Disneyland Resort in a day, so let's jump right in.
Eligible tickets can usually be upgraded by calling the
"Tickets" phone number. You could also upgrade at the ticket booths, but I think it's better to get it all taken care of before you arrive. If you're really looking to maximize your time in the parks then I would also suggest adding
Lightning Lane Multi Pass to your ticket. If you get to the parks early and stay on top of reserving Lightning Lanes you can see so much!
Make sure when you upgrade your ticket that you still have a
theme park reservation. I can see that there are still
park reservations available for your arrival date, but I wouldn't wait too long to upgrade your ticket and confirm a reservation. Your Park Hopper ticket will allow you to "hop" between parks starting at 11:00 AM, but you do need to start your day in the park that matches your reservation.
Another way to get a head start on your visit is to download the
Disneyland Mobile App! The app has a great interactive park map that will show you wait times, Lightning Lane availability, dining locations, and lots more. For a quick meal or snack, you can use the
mobile ordering feature, too!
Have the most magical day ever, John!
Keep moving forward!
Amanda