The Unique Day Trip To Niagara Cave In Minnesota Is A Must-Do

Do you and your family have a sense of adventure and love exploring? If your answer is yes, make sure to visit Niagara Cave when you’re in Harmony, Minnesota. During your visit to this underground cave, you’ll walk for about a mile and get to check out fossils that are said to be around 450 million years old! Curious to know more? Read on to see what else you’ll discover when you and your family take this unique Minnesota day trip.

If you’re ready to go on an underground adventure with your family, visit the official Niagara Cave website to learn more about tour hours and admission costs. Please note that this attraction is open seasonally, typically opening in early spring.

But don’t stop with just a tour of the caves here, Harmony, Minnesota has plenty of things to see and do!

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Address: Niagara Cave, 29842 Co Hwy 30, Harmony, MN 55939, USA
The OIYS Visitor Center

Niagara Cave & Related Info

May 03, 2023

Are there any caves in Minnesota?

Minnesota may not be known for its caves the same way it's known for its abundant lakes, but you can bet this gorgeous Midwest state has a few hiding in its recesses. In fact, Minnesota doesn't just have lakes, caves, and waterfalls ... we also have an underground river! Here are just a few caves in Minnesota:


What are some of the most interesting historical sites and landmarks in Minnesota?

Minnesota is full of unique historical landmarks, parks, and memorial sites that tell the story of the state's peoples and history through the centuries. Just a few of the most popular historical sites and landmarks in Minnesota are:

  • Hull-Rust-Masoning Mine, Hibbing
  • Plummer Building, Rochester


For the most bang for your buck in terms of historical places to visit, the small town of Mendota, MNLitchfield, and New Ulm are all chock full of things to see.