Niagara Cave

This cave boasts an underground 60-foot waterfall and fossils that are estimated to be 450 million years old.

To experience an underground spectacle that will spark your wonder, pay a visit to Niagara Cave in Harmony, Minnesota. As one of the most incredible caverns in the Midwest, Niagara Cave is open 7 days a week to visitors seasonally from May through October. The limestone cave system was carved millions of years ago and even has fossils of aquatic life embedded within it that are estimated to be 450 million years old. The highlight of the cave is the 60-foot waterfall that cascades over the rock formations. On a guided cave tour, visitors travel down 200 feet via a mile-long path with 550 total stairs while taking in astonishing stalagmites, stalactites, and flowstones.

The cave stays around 48 degrees all the time, so be sure to bring a jacket! On the surface, there are a number of pastimes that the whole family can take part in. There’s an 18-hole miniature golf course, gemstone panning, picnic facilities, and a playground. The park surrounding the cave is surrounded by colorful wildflowers and singing birds, creating a peaceful environment. Niagara Cave's blend of geological marvels, outdoor activities for the family, and natural beauty make it a top-notch destination for anyone seeking an immersive encounter with the underground phenomena here in southeast Minnesota.