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Marengo Cave 400 Indiana 64, Marengo, IN 47140 ☎ (812) 365-2705 Last Updated: 08/19/2026 |
| Marengo Cave in Marengo, Indiana, is one of the state's most popular natural attractions, offering a fascinating underground experience for visitors of all ages. This U.S. National Natural Landmark provides guided tours through stunning cave formations and a range of above-ground activities for outdoor enthusiasts. | |
| Cave formations include massive columns, delicate soda straws, and flowstone walls.The caves are well-lit, emphasizing the beauty of the natural formations while maintaining a safe path for visitors. | |