The Queen Mary’s Dark Harbor is a large Halloween festival staged aboard and around the historic ocean liner in Long Beach, California. The event combines haunted mazes, hundreds of costumed monsters, immersive environments and theatrical scares with the ship’s naturally imposing corridors, machinery spaces and maritime history. Rather than functioning as a single haunted‑house walkthrough, Dark Harbor allows visitors to explore multiple attractions and entertainment areas throughout the evening.
Beyond the mazes, the festival features live stage and roaming performances, carnival rides, themed bars and lounges, seasonal food, miniature escape games and secret speakeasies hidden throughout the venue. Premium options include guided tours, expedited maze entry and access to exclusive experiences. The 2026 season is scheduled for select nights from September 18 through November 1, positioning Dark Harbor as a full‑scale nightlife and horror destination built around one of Southern California’s most recognizable historic landmarks.