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The only thing better than a haunted attraction is a haunted attraction on a giant boat. You’ll find all the usual horrors here—fog, mazes and countless monsters. What sets Dark Harbor apart is its use of its surroundings; the dark, cramped confines of the Queen Mary are already pretty spooky even without monsters—just be prepared to climb a lot of skinny staircases. There’s also an R.I.P. Lounge (see what they did there?) if you’re looking for a first-class experience (fewer monsters, more booze). Tip: Arrive early for the $20 “Happy Haunting Hour” from 6 to 8pm, where you can calm your nerves with a spiked potion at a pair of tap rooms.