Ooogie Boogie Bash – A Disney Halloween Party is an after-hours party that takes place some nights during the Halloween season at Disney California Adventure Park. Attractions remain open for guests, and there is also party specific entertainment, candy distribution (think trick-or-treating) and characters dressed-up for the occasion. Guests may also wear costumes, within certain parameters. This party requires an event-specific ticket and is not included in park admission for the day, but party guests are allowed to begin entering the park before general admission hours end for the day. Tickets for this event are popular and sold online in advance.