Hi, Lise! Thanks for stopping by planDisney with your question!
Park hopping at the Disneyland Resort is so incredibly easy and provides a lot of flexibility with how you plan your trip and how you tour the parks each day. So I'm really glad you're considering upgrading your
tickets to the Park Hopper option for your upcoming visit.
To add the Park Hopper option, simply stop by a Disneyland Resort ticket booth on the first day you arrive. When you add the Park Hopper option, it is a flat fee per ticket, not per day. In other words, it is the same cost to add the Park Hopper option whether you add it to all three days at the beginning of your trip or choose to add it on your last day. So, you might as well enjoy the benefits of park hopping each and every day of your three-day trip! Keep in mind that you can hop over to the other park starting at 1:00 p.m. each day.
Since you'll be able to hop between the parks (subject to park capacity limits), you could start your day at Disneyland Park enjoying iconic attractions like Pirates of the Caribbean and
Matterhorn Bobsleds and then end your day with a delightful dinner at
Lamplight Lounge in Disney California Adventure Park. Just be sure to make dining reservations in advance online or on the Disneyland app.
I hope your visit to the Disneyland Resort is full of magic and memories!
-Linda