As far as spirits go, the 200 or so thought to be haunting the Queen Mary open portholes to a level of paranormal activity worthy of expert interpretation.
Erika Frost fits the bill for the cruise ship turned World War II vessel turned floating hotel and museum, which is permanently docked in Long Beach, Calif.
Leading the Queen Mary's daytime "Ghosts and Legends" tour, Frost guides visitors through the 76-year-old retired ocean liner's history by way of the most notorious spots for paranormal activity.
Among the highlights: the engine room where at least two men were crushed to death by the infamous "Door 13" and the defunct swimming pools where the sights and sounds of people reportedly still linger.
In other words, who needs the dark when Frost can turn a creepy ghost tale before lunch?
But for those who savor nighttime ghostly encounters, the "Grey Ghost" still lives up to its nickname. The internationally recognized ship boasts thousands of visitors each year, with many calling it one of the most haunted places in the world.