Known as one of the most-visited destinations in the state, Marengo Cave was discovered in 1833 by the Hiestand children. The cave became a U.S. National Natural Landmark in 1984 after years of exploration and history. Today, the cave is open to visitors year-round and offers two guided tours, the Crystal Palace and Dripstone Trail, plus a variety of seasonal events. The site also includes other family-focused attractions, such as mini-golf and camping facilities.
Spring Mill State Park is home to multiple caves including Twin Cave, Donaldson Cave, and Bronson Cave. The water flowing through these caves never freezes, which allowed for the year round operation of the gristmill when it was in operation dating back to 1817. The dry side of Donaldson Cave can be explored by visitors walking through the park, and Twin Cave can be explored on boat tours seasonally during the summer. These boat tours are given by guides who highlight cave formations and cave animals.
Blue Springs Caverns has over 21 miles of passages and is most notable for having the longest subterranean river discovered in the United States. Visitors can explore the park above the caverns or descend 400 feet underground on an hour-long guided boat tour (subject to seasonal availability).
Ready for your next adventure? Head to Southern Indiana to find out what’s going on down underground.