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164 votes

Niagara Cave

29842 County Road 30, Harmony, Minnesota 55939 USA

Closed Now
Opens Tue 9:30a
  • Independent
  • Credit Cards
  • Not Wheelchair
  • Public
  • Outdoor
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Due to the spread of COVID-19, some points of interest may be closed or have restrictions. Please stay safe and call ahead to get the latest information.

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“Below the Surface of Harmony!”

Attn: Hours for the Niagara Cave vary depending on what time of year you visit.  April: Saturdays and Sundays 10:00 - 4:30 May: Weekends 10:00-4:30 Mon-Fri Tours @ 11:00, 1:00, 3:00 & 4:30 Summer (Memorial Day - Labor Day): Daily 9:30-5:30 September: Weekends 10:00-4:30 Mon-Fri Tours @ 11:00, 1:00, & 3:00 October: Weekends 10:00-4:30 Thurs & Fri: Tours @ 11:00, 1:00, & 3:00 Niagara Cave is one of the most fascinating and unique geological attractions in the United States. In fact, it has been rated one of the top ten caves in the United States by many outdoor activity rating sites! 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, plus much, much more. Niagara cave is a constant 48 degrees year around, so a light jacket or sweatshirt is suggested. Proper walking shoes are required, (flip flops and Crocs are not recommended) High heels and bare feet are not allowed. Also, because there are several sets of stairs on the cave tour wheelchairs and strollers can not be used on the tour. However, the gift shop is wheelchair accessible. If you have a heart condition, have difficulty taking stairs, have severe asthma, or any condition that may hinder your ability to walk one mile and descend and climb a total of 250 stairs in a cave environment with high humidity, we do not recommend that you take the tour. Niagara Cave is not a bat habitat.

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Reviewed by
Dana Newkirk

  • Road Warrior
  • 298 Reviews
  • 352 Helpful
August 05, 2014
Rated 4.0

Niagara Cave is also home to the Crystal Wedding Chapel where couples can have their wedding ceremony in the deep underground caves. Since 1934 they've held over 400 weddings in the little chapel overlooking the amazing waterfall!

2 people found this review helpful

Reviewed by

  • 2 Reviews
  • 1 Helpful
August 08, 2018
Rated 5.0

This place was awesome. Extremely beautiful and interesting!

1 person found this review helpful

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Niagara Cave

29842 County Road 30
Harmony, Minnesota
55939 USA


Closed Now
  • Sun - Sat: 9:30 am - 5:30 pm

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  • Parking
  • Pets Allowed
  • Restrooms
  • Wifi
  • Wheelchair Accessible
  • Credit Cards Accepted
  • Outdoor Seating
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Parking, Dining

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