Spook Cave: An Iowa Underground Adventure

Spook Cave, located near McGregor, Iowa, offers a distinctive and memorable experience, inviting visitors to explore a natural limestone cave via a guided boat tour. The cave's story is intertwined with local legends, dating back to the late 1800s when settlers reported strange noises emanating from a small hole at the base of a hill along Bloody Run Creek. These eerie sounds led to the cave being dubbed "Spook Cave". In 1953, Gerald Mielke investigated the source of the mysterious noises, dynamiting the opening and discovering a large, flooded underground cavern. Two years later, in 1955, Spook Cave opened to the public, offering guided boat tours that navigate through the cave's flooded passages. The cave maintains a consistent temperature of 47°F year-round, so a light jacket or sweatshirt is recommended. The boat tour lasts approximately 35-40 minutes, during which guides share the history, development, and geology of the cave. Visitors can observe stalactites and other natural formations while guides recount the cave's history and point out interesting features. Spook Cave is part of the Driftless Area, characterized by karst topography, sinkholes, and disappearing streams. The cave tour involves no walking, as the entire journey is by boat. However, some areas have low ceilings, requiring visitors to bend or duck. In addition to the cave tour, Spook Cave & Campground offers a range of activities and amenities. The 93-acre property includes a campground with primitive and full hook-up sites, cabin rentals, a shower house, laundry facilities, and flush toilets. Guests can also enjoy fishing in the trout stream and Spook Cave Lake, swimming, paddling, hiking, and a playground.