The Largest Cave In The USA Will Blow Your Mind

It's almost scarier shining the light and seeing where your in.

Back when used to hear about people getting lost in caves .. losing their way and not able to find the way out. Makes me wonder if GPS works underground in caves .. and maybe could be used to plot a course in and thus out?

Bro swimming with who knows what down there.

That’s so scary if it was all lit up it wouldn’t be too bad but dark shyt sign me out

Where do you guys find these spots?

Wait how do you get back up

It's simply amazing to me that life can be found that deep into that cave.

Awesome ❤thanks sharing this adventure

I could never do this because the entire time I would be thinking that someone would cut my rope or I'd get wedged or hurt and unable to climb back out.

crazy adventure！👍👍greetings from china

Mammoth Caves?

I realize this is an older video, but I was wondering, how long does it take to climb back up such a rope when you decide to come out? Great video. Back in my youth I did some cave exploring as well, but nothing like this...

Why didn't you guys do the through trip? It would have been fun watching you all navigate up through Gary's Chamber.

Mammoth Cave in Kentucky has over 400 miles of cave and they are still discovering more every year. I would love these guys to go through some of the different areas to show people on here. It is truly the most beautiful cave I've been in.

I’d be so scared that the earth’s plates would shift and I’d be screwed. Kudos to you both for bravery!

I never ever thought places like this existed underground. Massive.

We know so little about anything below six feet of our yards,

Caving while it's raining outside? That's not risky an adventurous, that's stupid levels of suicidal, Russian roulette with 4 out of 6 the chambers loaded. You all got massively lucky and basically gambled with your lives. Bring a team lead over 35 next time who isnt afraid to ruin everyones day by calling the trip off.

Having seen my seen in this video I can 100% guarantee you straight up if you follow my advice here it is sooner or later going to save your life, and you will 100% end up dead this level recklessness if you don't, because that is what is on display in this video going caving while it is raining outside, negligent suicidal levels of recklessness.

Not at all sorry I had to say it or lay it out in this fashion. Y'all make good videos and I'll hate to see you go when not if things go sideways. Take some darn precautions and thank you for the content!

Great Video !! Balls of Steel ! Scary and Exhilarating all at the same time. What Amazes Me the Most is that there is Oxygen!!! LololoL { I'm only half way way through.!! } 👋😎👍

Thank you for your blogs I love nature but unfortunately I have got mobility issue, thank you❤ I feel like I was dreamed when saw this cave it's beautiful absolutely beautiful, like Jupiter thanks ❤

Just keep in mind u can die of hypothermia in 72° water

Vault tech's next acquisition. Thank's

That light has to be illegal

It could be the descent into the bottom of the ocean

Could you imagine the fossils that are in there

Or how the ancients talk about the people that live in the mountains or underground

you guys are FUCKING CRAZY. my skin was crawling when you went into that river and actually found crawfish...

Ballsy af, i'm gonna enjoy this channel

Why do I have the urge to just live in there with a couple friends

I would be really scared if some random dude on some villain arc stuff came to cut the wire when they are down there. My rational fears 😅

You don't need to say which state this is in, but can you tell me what region it is in? Midwest? Central? Western?

How y’all get out?

I don’t get spooked easily but this freaked me out. I have been in several commercial caves (Meramec Caverns, Onondaga, Marvel caves and a little cave called Cobb’s Cave that is now closed.

These twins dont live on our world, they live in a world of their own.He swims like a Koala lolol

I found a battery something like that in a cave in New Mexico once.

Laying on my couch and I am scared to death, lol.

I don’t think that cave is bigger than Letiagia ?

What state is this?

Nope. No thanks. No way. Un-uh. Sorry. Don't think so. Negative. No.

I would be willing to sponsor a trek and maybe even a weeks stay to go deeper into a cave. What would you all expect to be paid for such a long trek?

Is this a part of mammoth cave?

It should be against the law to let people take risk like this because if it’s not law, certain people will risk their life to have fun until it ain’t no more 😂😂😂😂crazy

Where this cave is located???

Exciting!

Whats the name of the cavern by any chance

Mr Tatum wants to do this but looks scary for a first time lol

Okay...where is this...?? Don't even need an exact location...just a state? Wow....

It is so loud in the creek...... And Me and Alex went on a long journey to somewhere and never found a dead end.... We just finally decided to turn around and come back.