Explore Niagara Cave: Guided Underground Tour in Harmony, MN
Difficulty
moderate
Duration
1–1.5 hours
Fitness Level
Suitable for most fitness levels; you should be comfortable walking and climbing stairs.
Overview
Step inside Niagara Cave for a private guided tour through ancient rock formations and a spectacular underground waterfall. Unearth fossils and explore deep below the surface on this unforgettable Minnesota adventure.
Guided Cave Tour
1 Hour • All ages!
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About This Adventure
Embark on a thrilling underground adventure with a mile-long hike through Niagara Cave, where you’ll discover 450-million-year-old fossils, stunning cave formations, and an enchanting subterranean waterfall. Experience the unique descent and ascent of 275 stairs, all while exploring a captivating world beneath the surface.
Duration
1 Hour
About
- Go on a mile-long hike underground
- Discover fossils ≈450 million years old
- Travel nearly 200 feet beneath the surface
- Descend 275 stairs
- Ascend 275 stairs (round trip total; 550 stairs)
- See cave formations both delicate and massive
- View our underground stream and waterfall
- Visit a subterranean wedding chapel
Price
Price is inclusive of all taxes and fees General Admission: $24.39 Child: $15.07
More info
Backpacks and backpack baby carriers are not allowed (front packs for babies ARE encouraged). Food and drinks are not allowed. Proper walking shoes are required, flip flops and Crocs are not recommended. High heels and bare feet are not allowed. Photos ARE allowed, but tripods are not.
CAUTION: If you have a heart condition, difficulty taking steps, severe asthma, or any condition that may hinder your ability to walk one mile, descend 275 steps, and ascend 275 steps in an environment with high humidity, we do not recommend that you take the tour.
PETS: For guest safety and comfort pets are NOT allowed in the gift shop nor the cave. Pets are welcome on the grounds but must be leashed or physically restrained. Pet owners are responsible for cleaning up after their pets! (Certified service dogs are allowed.)
What to bring
Niagara Cave is a constant 48 degrees F (9 degrees C), so a light jacket or sweatshirt is suggested.
Check In is required: 15 - 30 minutes before your scheduled start time!
Adventure Tips
Wear sturdy, non-slip shoes
The cave floor can be uneven and damp, so footwear with good grip is essential for safety.
Bring a light jacket
Temperatures inside the cave stay cool year-round, typically around 48°F (9°C).
Be prepared for stairs
Expect to climb and descend 275 stairs; pacing yourself helps prevent fatigue.
Listen carefully to your guide
Guides share important safety instructions and fascinating geological info.
Local Insights
Wildlife
- Eastern gray squirrels
- White-tailed deer
History
Niagara Cave formed over 450 million years ago and was discovered in the 1920s, with tours opening to the public shortly after.
Conservation
Niagara Cave is committed to preserving its natural state by limiting tour sizes and enforcing strict no-touch policies on delicate formations.
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Adventure Hotspots in Rochester, MN
Frequently Asked Questions
Recommended Gear
Closed-toe hiking shoes
Provides grip and protection on the damp, uneven cave floors.
Light jacket or fleece
Keeps you warm in the consistently cool cave environment.
Flashlight or headlamp
Useful for exploring darker areas or if you want additional lighting for photography.
Reusable water bottle
Helps you stay hydrated before and after the cave tour.