Hello, Maurice! Thanks for stopping by planDisney and asking your question!
Park hopping is so easy at the Disneyland Resort that my family and I hop back and forth between parks every day of every trip we take! So I wholeheartedly recommend adding the Park Hopper option to your ticket. Adding the Park Hopper option is a flat fee per ticket, not per day. So if you add it when
purchasing your two-day tickets online or on the
Disneyland app, you will be able to park hop both days. If you purchase one park per day tickets, you can add the Park Hopper option on your second day by visiting a ticket booth, but the cost would be the same whether you added it for both days or just one. It definitely makes more sense to add it from the get-go and have the freedom to park hop on both days.
Keep in mind that
theme park reservations are required for each day you want to visit the parks. With a Park Hopper ticket, you will make a reservation for the park you want to start at each day and then at 1:00 p.m., you can hop to the other park. It's a good idea to view the
theme park reservation availability calendar before making any plans.
I hope this information was helpful. Have a magical day!
-Linda