Theme Park Halloween Events in Southern California

Universal’s flagship after-dark Halloween event returns with eight haunted houses, Terror Tram, scare zones, live entertainment and themed food. For 2026, announced houses include Sinners, Stranger Things 5, Hellraiser and more.

The Queen Mary and surrounding harbor become a sprawling Halloween festival with haunted mazes aboard the historic ship, roaming monsters, entertainment, carnival rides and themed bars. Bags must be 6×6×8 inches or smaller, with no backpacks of any size; every bag is inspected and there’s no bag check. General parking is off site in downtown Long Beach lots with a guest shuttle; parking on the Queen Mary property is preferred parking only.

Castle Park’s nighttime haunt returns with three mazes, scare zones, rides, themed food and live entertainment. The 2026 edition adds two all-new mazes. Not intended for guests under 13, and guests under 17 must be with a parent or guardian 21 or older. If the park closes early for weather while you’re inside, Guest Relations gives you a free return ticket.

Magic Mountain goes fully after dark with haunted mazes, scare zones, shows and thrill rides, 6:30pm to close on event nights through Sat. Nov. 7. The haunted mazes need a separate Haunted Attractions Pass, there’s no re-entry after 9pm, and Six Flags doesn’t recommend it for kids under 13.

A daytime seasonal option at Six Flags Magic Mountain for families who want Halloween atmosphere without the full nighttime Fright Fest intensity.

SeaWorld’s daytime, kid-friendly Halloween: trick-or-treat stations, the new Baby Shark Halloween Show, a pumpkin patch, Spookley dance parties and a pumpkin hunt. Included with park admission; Howl-O-Scream takes over after dark.

Not-scary kids Halloween at LEGOLAND California on select dates Sept. 19–Nov. 1, 2026. Brick-or-Treat is included with dated park admission.