Hey there Valentina,
Welcome to planDisney and thanks so much for your question! I'm thrilled to hear you're planning a trip to the Happiest Place on Earth during the Halloween season - it's such a fun time to visit.
Oogie Boogie Bash - A Disney Halloween Party is a separately ticketed event held in
Disney California Adventure Park, so if you haven't already, make sure to purchase your event tickets because they do tend to sell out quickly!
What's great about Oogie Boogie Bash tickets though is that - even though the event doesn't start until 6:00 PM - the event ticket grant you access to Disney California Adventure Park as early as 3:00 PM. Therefore, if you don't plan to purchase the
Park Hopper ticket, it may be worth setting your park reservation for Disneyland Park so you can visit there earlier in the day and then head over to Disney California Adventure Park any time after 3:00 PM.
Alternatively, if you wanted to enter Disney California Adventure Park prior to 3:00 PM then you would need a valid park ticket with a park reservation for that day.
In the meantime, keep an eye on the
Disney Parks Blog and
Disneyland Instagram account for more sneak peaks and details of all the Halloween festivities as they are posted! Thanks again for your question, Valentina. I hope you have a wonderful time on your upcoming visit.
Have a Magical Day,
Greg