Hello Rose!
Welcome to planDisney and thanks for dropping by with your great question!
It sounds like you are looking to extend your vacation to the
Disneyland Resort before you’ve even set foot on the property! I’ve certainly been in your shoes before! There's so much magic to experience at the Disneyland Resort right now! It seems like there is never enough time to enjoy it all!
Upgrading your 3-Day Theme Park Ticket to a 4-Day
Theme Park Ticket option will have to be requested in person at the Disneyland Resort Main Entrance Ticket Booth. A Cast Member there will be able to assist you further. But, please know that this upgrade is subject to availability. If you have additional questions regarding your Theme Park Tickets, I encourage you to reach out to Ticket Services at (714) 781-4636.
You may also have the option of adding the Park Hopper feature to your ticket. This would allow you to hop back and forth between
Disneyland Park and
Disney California Adventure Park after 11:00 a.m. each day (subject to theme park capacity.)
Thanks again for bringing your question our way! We hope to see you back at planDisney with future questions!
Tiffanie