Hi there Annmarie, welcome to planDisney!
That is so great that you were able to take advantage of the wonderful
ticket offer for Southern California residents! On the day of your first use, you will need to prove eligible residency in ZIP codes 90000 to 93599 with a government-issued photo ID, so make sure to bring that with you in your park bag for the day!
There is a specific
theme park reservation availability calendar for the Southern California Resident ticket offer, and you are able to modify your theme park reservations as long as there are reservations available for your new dates. You can visit the
theme park reservations page, and click "Make or Modify Park Reservations" to update the dates for your visit. If you are running into any issues, you can reach out to a helpful Cast Member on the
Tickets Guest Services line.
I definitely recommend checking out the
Disney Parks Blog prior to your trip to get an update on what to see, eat, and experience during your visit. Please feel free to
come back to planDisney if we can help with any other questions, I'm wishing you and your family a wonderful trip to the "Happiest Place on Earth" Annmarie!
Have a magical day,
Melissa