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Niagara Cave

  • 29842 County Road 30
    Harmony MN 55939
  • phone: (507) 886-6066
  • toll free: (800) 837-6606
  • Visit Website
One of the most fascinating and unique geological attractions in the United States. During the one hour, one mile, guided tour visitors will witness an underground stream leading to a waterfall nearly 60 feet high, stalactites - both delicate and massive, calcite flowstone, several fossils that have been dated to over 400 million years old, and a wedding chapel in which over 400 weddings have been performed, and more. Rated one of the top ten caves in the country. Open seasonal hours.