Canmore: Rat's Nest Cave Explorer Tour & Underground Crawl

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Free cancellation

1/8

Duration4h 30m

GroupUp to 8

LanguagesEN

Mobile ticketAccepted

What's Inside One of Canada's Longest Caves

You hike uphill for 30–40 minutes, then spend 2 to 2.5 hours underground crawling past bones and formations, squeezing through tight passages if you choose, and learning cave geology from your guide. All equipment—helmet, harness, lights—is provided. You'll need moderate fitness and a waist under 46 inches to fit the safety harness.

4h 30m

Step-by-step itinerary

Explore Rat's Nest Cave in Canmore

Arrive at Rat's Nest Cave
Meet your guide
Enter the cave
Crawl past prehistoric bones
Investigate ancient cave formations
Attempt warm-up squeeze
Try challenge squeeze
Exit the cave

The Experience

What happens when you crawl 200 meters underground and find yourself in a passage so tight you have to squeeze through on your belly? That's part of the Canmore caving experience at Rat's Nest Cave, and it's not something you can replicate anywhere else in Alberta. The 4.5-hour tour starts with a 30 to 40-minute hike uphill on a mountain trail—nothing brutal, but enough to warm you up before you descend into the cave system itself.

Once you're down there, the guide walks you through roughly 2 to 2.5 hours of actual caving. You'll see prehistoric bones embedded in the rock, study ancient formations that took thousands of years to form, and if you're game for it, tackle the warm-up squeeze and the challenge squeeze—tight passages that test your nerve but also give you that real sense of moving through something genuinely old and untouched. The cave stays cool year-round, so even in summer the temperature drop is noticeable. Your guide handles all the technical stuff: they fit your helmet and safety harness before you go in, check your gear, and lead you through the route at a pace that works for the group.

The whole thing requires moderate fitness—you're scrambling, crawling, and sliding, not just walking. Your guide will be honest about what you're capable of, and the minimum group size is two people, though if numbers don't meet the requirement after booking, you get offered an alternative date or a full refund. Bring water, wear clothes you don't mind getting dirty, and know that this isn't a museum tour with a rope barrier—you're actually moving through the cave, using your hands and legs to navigate.

What’s included

Your day includes expert guide, all caving equipment (helmet, safety harness, lights), the 30–40 minute mountain hike to the cave, 2 to 2.5 hours underground exploring Rat's Nest Cave, and all activities including optional squeeze passages. You don't arrange transport to the cave or bring your own gear.

Good to know

Moderate physical levelPublic transport nearbyNot for heart conditionsNot for back problems

Operated by Canmore Cave Tours

Is this one for you?Book this if you want to actually move through a real cave system rather than walk a lit tourist route—the tight squeezes and scrambling are what make it feel genuine, and the guide's expertise is what keeps it safe.