Howdy Holly!
Thanks for submitting your question to planDisney! We’re so happy you dropped by to ask about Park Hopper!
The Park Hopper option on a multi-day
Disneyland Resort theme park ticket applies to all days on the ticket. There is no option to add the Park Hopper option to only one day of a 2-Day Ticket. But, if you currently hold two separate 1-Park-Per-Day Tickets, you may be able to add it to one of your days. This request must be made in person at the main entrance ticket booth. And it is subject to availability. If you decide to do so, I suggest requesting this upgrade prior to entering the theme park for the first time. That way you can take full advantage of the day.
Upgrading to a Park Hopper ticket gives you the option to hop to the other theme park starting at 11:00 a.m. You will not be required to make another Park Reservation to visit the other theme park. And, you may park hop back and forth as often as you like. But, as always, theme park admission is subject to attendance availability.
If you have additional questions, please feel free to bring them our way!
Tiffanie