Hello, Carrie! Welcome to planDisney and thanks for your question!
Park hopping at the Disneyland Resort is so incredibly easy as the parks are mere steps away from each other! In fact, my family and I park hop every day of every trip we take because it's such a breeze. If you haven't purchased your theme park tickets yet, you can easily add this option when you
buy your tickets online or on the
Disneyland app. If you've already purchased one park per day tickets, you can still add the Park Hopper option by visiting a ticket booth when you arrive at the Disneyland Resort.
The price to add the Park Hopper option is a flat fee per ticket, not per day. So, if you have a three-day ticket, it is the same price to add the Park Hopper option on day one as it would be to add it on day three. Therefore, I suggest adding this option to your tickets on your first day and enjoying the benefits of park hopping during your entire stay. You can start park hopping at 1:00 p.m. each day.
I hope your trip to the Disneyland Resort is full of magic and memories!
-Linda