Howdy, Michelle! Welcome to planDisney and thanks for your question!
Your trip to the Disneyland Resort will be here before you know it and
Halloween Time is a fantastic time to visit! The
Oogie Boogie Bash – A Disney Halloween Party takes place on select nights in September and October at Disney California Adventure Park, including October 30th. The party officially starts at 6:00 p.m. and if you don't have a special event ticket, you will be asked to exit Disney California Adventure Park at that time (Disneyland Park does not close for the party). But with your Park Hopper ticket, you could absolutely hop on over to Disneyland Park after Disney California Adventure Park closes for the party. You can also enjoy the Downtown Disney District that evening as well.
At Disneyland Park, you can experience Halloween favorites like Haunted Mansion Holiday and the
Halloween Screams nighttime spectacular. There will also be lots of spooky fun to enjoy at Disney California Adventure Park before the party like seasonal overlays on select attractions in Cars Land, lots of Halloween decor, and
Plaza de la Familia which offers entertainment in the spirit of Día de los Muertos.
I hope this helps clarify things for you. Have a boo-tiful time at the Happiest Place on Earth!
-Linda