Sign up for our newsletter and get a curated list of the top trending stories and exclusive rewards every day.

Trending Topics

Get the MTL Blog app

Download on the App StoreGet it on Google Play

10 Things You Need To Know About The Giant 15,000 Year Old Cave Discovered Beneath Montreal

A massive network of underground chambers.
10 Things You Need To Know About The Giant 15,000 Year Old Cave Discovered Beneath Montreal

A few years back, we wrote an article about a network of underground caves hidden beneath Montreal that you could actually explore, and people went nuts.

It just wasn't the kind of thing you'd expect to see beneath a major city, but it turns out there are even more caves than we initially thought. 

READ ALSO: Old Montreal Has An Underground Cave You Can Explore You Probably Never Knew About (Photos)

Recently a new cave was discovered near the first one and it's far bigger than anyone could have imagined. More of it is being explored every day, but here's everything we know about the cave so far: 

1. The cave was discovered in October by amateur cavers 10 meters beneath Montreal.

2. The caves were formed when the rocks split during the ice age.

3. No human has ever seen them or been inside until only a few weeks ago. 

4. The cave is actually a vast network of connecting chambers.

5. Cavers have not yet been able to explore it all yet. 

6. It was discovered after drilling though an ancient limestone wall. 

7. It is highly unusual for a cave of this size to exist beneath a major city.

8. So far they have discovered between 250 and 500 meters of cave chambers. 

9. The total size of the cave is still unknown

10. To explore the cave you have to crawl on your hand a knees through muddy tunnels.  You'll need to use rock climbing equipment to get through certain area, and at one point you'll need a raft because the underground cave is filled with a clear lake. 


More from MTL Blog

Comments 💬

Our comment section is a place to promote self-expression, freedom of speech and positivity. We encourage discussion and debate, but our pages must remain a safe space where everyone feels comfortable and the environment is respectful.

In order to make this possible, we monitor comments to keep spam, hate speech, violence, and vulgarity off our pages. Comments are moderated according to our Community Guidelines.

Please note that Narcity Media does not endorse the opinions expressed in the comment section of an article. Narcity Media has the right to remove comments, ban or suspend any user without notice, or close a story’s comment section at any time.

First and last names will appear with each comment and the use of pseudonyms is prohibited. By commenting, you acknowledge that Narcity Media has the right to use & distribute your content across our properties.