Crystal Cave is fun for the entire family! Discover our unique, naturally formed, geological wonder 485 million years in the making! Our professionally guided tours explore multiple levels and meandering passages that descend more than 70 feet below the earth. Learn about the history and geology of the cave as you pass stalactites, stalagmites, other crystal formations, and the four species of bats who call the cave home! After the hour-long tour, venture above to experience the other great activities we have to offer. Search for real gems and fossils at Prospector’s Creek. Take the opportunity to hike our woodland trails, picnic with the family in our shaded picnic grounds, or browse our educational gift shop, which includes one of the largest rock shops in the upper Midwest. In addition to our extensive mineral collection, we have beautiful jewelry, fossils, apparel, and unique educational products for the entire family.