Built on a real retired working steamboat, the USS Nightmare is 288 feet long and houses the river's most notorious spirits. Step aboard and step back in time to tour this one of a kind haunted house and experience firsthand why the William S. Mitchell's crew - those lucky enough to survive - called the old boat "the Death Dredge." Each Halloween season brings new twists and turns to the haunted tour of the historic dredge as fright seekers meander through the eerie rooms and corridors of the massive old boat. The tour visits more than 30 areas of the steamboat and is enhanced with state of the art special effects and movie quality sound and lighting. From chain saws to evil illusions and multitudes of live actors set within the confines of the steamboat, the USS Nightmare tour is filled with 30 minutes of bone-chilling fear and immerses the fright seeker in the real life ghost story. But beware…the dredge's inhabitants including our infamous Captain Mitchell and his ghastly crewmembers are anxiously waiting. Join us and discover for yourself why the USS Nightmare is America's premier haunted steamboat.