The Biggest Underground Rooms In America Are Staggering!

[@stephenclark6499]

I caved for 20 years as a young man, primarily in a four county spread across the Kentucky-Tennessee State Line back in the 1990's and 2000's. We did nothing but virgin caves which is such a satisfying process from ridge-walking, discovery, initial recon, mapping and finally hard pushing every lead we could locate and building a cave map. Listening to you guys joke and react to the underground wilderness is such a joy and brings a huge smile to my face. Thanks for bringing us along with you. Twenty years ago we used to openly talk about how great it would be to film our adventures, but the state of technology in that time made it nearly impossible. The invention of LED lightening, digital recording, micro storage chips, and far better batteries are the stuff from our original fantasies. How I wish it had been there thirty years sooner. The best years of my life.

[@charleysturbos7320]

Awesome you got to pioneer some of that. Talking about technology as it was. But we went to the moon with that amazing technology and now we lost that great technology so we can't go back. Let's see what BS they pull next year when they say they will go. Usually throughout time they just keep postponing every selection. Heard the government is closing so many caves.

[@tomtom4405]

There is only 1 thing you should do. Go back into one of those caves for old times sake. None of us are getting any younger...

[@Shawn-yp9ic]

Sounds like you guys did pretty well with what you were working with. I suppose it will always be like this now that the technology ball is rolling along instead of just barely moving at all. With it rolling along, forward, we get to see and use new technology as it comes into being which is much better than us being long gone and only future generations seeing a change here and there. Back just a few generations and they really didn't see much of anything change in a lifetime My grandfathers lifetime saw very little advancements. To them automobiles coming into existence even tho there was few roads and fewer cars was big. TV's seemed a big deal too even tho they were very crude and there was nothing much to see on them.

[@John-d9e4x]

We were using carbide head lamps,

[@sammysplatoon8216]

Caves are definitely like being in another world, those formations are weird cool

[@NotAMathChannel9]

And another seed

[@wishtheyunderstoodme]

you guys are legit living in a video game. you have fun, no fear, get to dead ends and always find a secret room, get to water and floatation devices appear haha. so insane

[@Game-ls2mo]

nutty putty

[@markmark2080]

I'm 76, well traveled and adventured, never dreamed even 20 short years ago, that I would see so much more in my latter years...thank you for your efforts and sharing.

[@Pyramid1974]

Indeed, I so agree.. Technology is great, I am only 50 but I am experiencing things I never would've imagined right from my bedroom..

[@milliehicks7436]

What an amazing cave! It's unbelievable that you guys were in there for 10 hrs! I'm exhausted just watching you do that for 30 mins! 😂

[@garymucher4082]

I used to explore caves, but since I got much older, I now don't have the abilities and stamina to do that anymore. So your videos allow me to see what you guys are exploring... Amazing for sure! Thumbs Up!

[@aliensmanillegalaliens8950]

You lads should take a high powered uv torch with you. Youll be amazed at all the hidden wonders under there. I recommend the eagtac mx30l3 uv. Youll see all kinds for organic and mineral rock glow and in different colours. 100% recommend use uv if you haven't all ready

[@A_Prius]

Crazy to think about is that there’s probably larger rooms than these that go undiscovered

[@crusaderknight6928]

Right under our feet!

[@jakeforrest]

Maybe with living aliens inside 🧌

[@NicCageForPresident2024]

There are absolutely larger rooms there are even men made larger rooms full of human trafficking victims.

[@CGoneColdOfficial]

@@NicCageForPresident2024 Nice trolling 😂

[@NicCageForPresident2024]

@TooColdProdz I wish I were trolling. It may be man-made but these rooms full of trafficked humans are all over the world. There are generations of people that have never been outside of these underground facilities.

[@rgriffin09]

I was wondering when you guys would make your way over to my neck of the woods! I recognized the cave immediately, both from the entrance and the thumbnail room. (And the statistic). Fun fact: At the very end of the cave, there’s a body of water. We (me and a friend in our caving group that day) swam on tubes to the opposite end of the cave, and then jogged for another 5 minutes or so. At the very end, which DOES dead end, is a naked Barbie doll and a mix CD. 😂

[@Hamachingo]

The best geocache is where GPS don't reach. Also Pokemon Go arenas.

[@aserta]

@@Hamachingo You ain't kiddin'. Geocaches in the Paris catacombs are wild.

[@justgames2262]

Hey, can I please know what cave this is? I would love to visit it.

[@alextarpley4375]

its in TN@@justgames2262

[@russellwickham8334]

So, you didn't show the passage that takes off to the left there near the entrance. The graffiti in that passage is why I don't tell people where caves are. This is one of the first we explored when we lived in this community, and the damage short of the breakdown pile was heart rending. Once you get over that breakdown, there's nothing because most people don't know how to get through it. Also, that breakdown pile used to be much more open than it is now. Back in 2018 we did a tour to the smallest of the 4 rooms and upon exiting the cave and hiking back to the parking area, we came across a church group out of Alabama that was headed in. The next day other members of our Grotto went to the cave and found it full of dust, signs of a campfires near the base of the breakdown pile and abandon equipment. Most of the pile was blocked off by fresh breakdown. Below commenters have asked where this cave is. Find a grotto. Get to know the people. Go caving with them. They're going to take you to a locked cave, and you're gonna be on probation for a number of tours before they start revealing wild caves to you. Why? Because too often good caves get ruined by bad people.

[@rainbowinthedark453]

I will never be brave enough to explore caves or climb high mountains but I love watching and reading about them. I’m so glad you put them on probation and are picky and very choosy. You should have to earn your stripes and prove you are not an ugly acting tourist. I’m so shocked at how many ppl do this!

[@7seriesmax]

I love watching your videos because I’ve gotten way too old to go do this stuff anymore. You guys need to take a high output UV light On your trips. Crystal formations that you’ve seen that blow your mind will look insane under UV light.

[@chrisdaldy-rowe4978]

They do but not every time so i've heard them say

[@IAMDC322]

Insane adventures all from my couch 😄👍🏼 amazing footage gentlemen

[@joeschmo622]

I felt that way driving on a defunct airstrip, everything perfectly flat, no terrain. Lowbeams, brights, aux lights, no difference, everything but the immediate road ahead was all *black,* like shining into a cloudless night sky.

[@pauljones6784]

You guys have the best cave adventure videos. It’s all about realism.. Sometimes it can get a little sketchy..😊

[@Abijah12411]

Another excellent adventure😊.....keep having fun Edward and James and company

[@shablya]

That's one hell of a flashlight. Perfect for big cave exploration and you may even be able to fry some eggs with it.

[@1neAdam12]

@14:10

[@suetaylor1127]

Everything in this cave looks like it was something man made!

[@justachipn3039]

@@suetaylor1127 not a chance...there's lakes n rivers below as big or bigger than above !!! Learn about it...

[@Lugtastic]

@@suetaylor1127 Your house is probably sitting over a cave. There's cave systems everywhere beneath us, most undiscovered and never opened to the light of day.

[@jeremymoore16]

I'm also a flashlight connoisseur. I own a few high-powered flashlights. One of my every day carry flashlights. Which clocks in at around 4000 lumins is stupid bright. I also have the acebeam X80-gt which is 30,000ish lumins which is dangerously bright. Then I bought the X75 and had to put it under lock and key. That flashlight will piss off the neighbors in a heartbeat. It literally is like holding the sun.

[@stephanieburgess5190]

Thanks for taking the camera and making this for us! Always an amazing time! I can't get in many caves anymore cause of my back, but this is almost just as good as being there myself . Maybe better because it doesn't hurt as bad. Love the videos!

[@zenaakers7469]

Fabulous cave, thanks for taking us along.

[@ericburk7301]

Another great cave find, How do you guys find these places. ? Eric N.Y.

[@lindaarchinal9008]

My favorite watch of the week! You all are amazing, love what you find and do.

[@davidlittlejohn6636]

Whoa!!! Simply incredible!! Of all the caves you have videoed, this one has to be the largest....Colossus Cave....Thanks for sharing your expedition,🙂👍👍👍

[@saffycatamos]

Hey ! Thanks for taking us all along on that adventure. The size of those rooms is crazy !

[@Viking_SniperGod]

Love from Germany 🇩🇪 and keep up the great videos

[@buttonbeeandme7601]

I’m curious, how many pairs of shoes, pants and shirts and gloves do you go thru in a year? ..seriously! ❤️🇺🇸

[@KaptainKopter]

Tremendous cave! You guys are having so much fun inside this cave and I felt like I was right there with you! When you got to the end there was someones initials with the date 7-16-1923! Wow surprised you guys didn’t mention that cos that is exactly 100 years ago even almost too the exact date and month! WOW!

[@melissablueswomanhensley634]

oh wow you should have put the time stamp in. I will go find it and and put in for you. Good eye! Thanks for the tid bit!

[@KaptainKopter]

@@melissablueswomanhensley634 you are right I should have put the time stamp in but I am new to this kind of thing so I will know next time

[@brooklyngraham1151]

You’ve got to love the Rumble Room! I didn’t have anything like the light sources you use when I was there so it was cool seeing it lit up. The phospho-luminescence in calcite formations always fascinated me too. Great video of a great cave.

[@R3TR0R4V3]

This isn't the rumble room, though it looks _very_ similar.. Remember there's a long repel to get down to the rumble room, unlike in this cave. Still trying to figure out which one this is though.. EDIT - This is Camp's Gulf Cave, actually _very_ close to Rumbling Falls.

[@thomaslowery9660]

@@R3TR0R4V3 🤫

[@R3TR0R4V3]

Too late 🤷🏻 This stuff isn't hard to figure out, nor is it secret.. Some research and Google Fu ninja search skills go a long way, just sayin'. Plus combing through the comments can be helpful at times. Someone knowing the name of a cave isn't hurting anyone.. Plus It's not like I gave the GPS coordinates. 😅

[@mylesaway2566]

19:47 lol, wtf, cave exploring zoomies?

[@ForteanTN]

Man, I have, like, over 1000 caves on my regional Middle Tennessee maps (Cumberland Plateau region) I was given by some members of the state a few years back. You guys are in Tennessee so often, I should send you some of the coordinates and let you guys go wild.

[@Underground_Adventures]

We would love that

[@vapenotiqvapors1408]

Yea we do have some AMAZING caves around here.

[@tinaprice6180]

Oh to be young again 😊😊 What an amazing episode!! Can’t wait to see the next big adventure.

[@TonyVRailfanning]

That’s a cave I could go into without too many issues, some of the ones you do are so claustrophobic that I could not. Really amazing to see

[@DawgSh7T]

U guys lucky that theres no creeper in that cave

[@Underground_Adventures]

We could beat it in a fight.

[@mikolavision]

yet another mind bending hike into the underground past - anybody notice that stone marked *1923* ?? with no super luminous or even electriclights ❓ no way to even SEE that ceiling or which way to go. man you guys are part amphibian I'm convinced. Some who tag along have NOT seen your vids...ill prepared to say the least. I'm pushing 70 and paralyzed since 2018 and my most physical enterprises were out there for real but you guys make adrenaline addicts look like couch potatoes 💪✌️😇🤠👍🙏🙏 be blessed and be safe mick

[@YotaguyJosh]

Absolutely amazing!!! Thank you for sharing. ✌️

[@charleshorseman55]

That's enormous! Definitely comparable to Mammoth Cave.

[@protozoanpro]

You upload at the best times fr

[@gingerl2995]

Thought y’all were embarking on a journey to center of inner earth there for a sec. I would like to think there is a false door where it seemed to end. ;) lol Great awesome wonders beneath us!!!

[@johnjrambo5827]

Awesome video boys

[@goingwithamit8774]

Havent seen so huge opening inside a cave ever and that's really amazing to experience ever ❤

[@1neAdam12]

@24:40 One century never felt so short of time

[@burtpanzer]

I'm guessing that minerals and particles in water seeping through the rock and humidity from the water inside, would form those after dripping from the ceiling for 1000's of years. Those bulbs on the ground are amazing the way they look like they've been glazed with a lemony frosting.

[@kspen6110]

What a fun trip to watch. Incredible you were in there for 10 hours!!!

[@PeterGraham]

That was epic to watch .. you guys ahould overnight camp in there!

[@alisonmary1443]

That was good, the circular formation in the big room makes me thinks the water swirled around there for a very long time, not sure if that is right but its fascinating to see this cave, Thank you so much, awesome.

[@royallclark6331]

another great adventure! I'm sure it's been asked before BUT.... In your pack you must have food and water. I'm interested in backup lights and how many spare batteries you need for a long trip such as this one? Like dude... lights out, you're screwed!

[@jasmingasi2840]

Wow l am high and l watching u guys made me like l was there .Thanks for sharing,10H that's crazy 💪 Beautiful nature 😮

[@wynneporter7162]

Love this video! The cave is amazing, and the laughter and excitement are contagious! Thank you for the armchair ride!

[@mirkatu3249]

What a fun explore. I lol'd when you all got on that raft. Hope your friend's arm/hand is okay.

[@Senditnyc]

How do you find these caves ?

[@j.k24]

where is this?

[@MeMyselfAi-kg2ep]

Let’s go Spelunking!!! Thanks for the upload, love your content!🎉

[@rpglennj]

Love your content and try and catch each upload. Reminds me of my younger days. However, I’m going to finally be that curmudgeonly old dude by saying this is the first vid that I’ve seen where someone not only fell while running, but fell 3x in the span of about 10-15 minutes. Toward the end, it appears the same person was laid out on his back, complaining of his elbow and a pinky injury. I’m not sure how extensive his injuries actually turned out to be, but I hope your group is- and I encourage you to be- prepared in the case of a more severe injury requiring assistance or extrication and minimize risky actions. Even smaller injuries (such as lacerations on exposed skin) can be magnified underground. Not trying to come down hard on you, I just care about you guys and appreciate your enthusiasm for the underground.

[@Stoxo]

this video IS AMAZING. such a good one

[@chrishandsome6542]

What's with the date 7-16-1923 in the mud at 24:40? Just wondering. 7-16 is my birthday. 😊

[@TrueHelpTV]

wow. as a professional radio tower/climber.. i want in brother.. badly.. fun times. love it

[@placesaroundus]

10:56 clumb lol reminds me of that movie. "I clumb pikes peak" mad John Wayne:"you done WHAT to pikes peak"

[@cavezip]

That room is sick bro!

[@MegaMasterBaiter]

What brand of light???

[@xplmr1]

I can't stop thinking that all of that rubble you're walking over used to be part of the ceiling. Whenever you yell, I cringe like Shhhh! Whisper!

[@davidsul7052]

I think this cave is more dangerous for groundfall than an average abandoned hard-rock mine. (Although false floors are a bigger hazard in abandoned mines). All you need to do is just look at the ceilinngs of those 3 big rooms and the muontains of huge groundfall slabs on the floors of them to figure that out. The best way to navigate is to stay along the edges of those rooms.

[@dreadnoughtus2598]

But the middle has already fallen.

[@Iant333]

I might still fall again. Though the odds of it happening while youre standing underneath is pretty low.

[@davidsul7052]

@@dreadnoughtus2598 Its a slpw process, a slad falls now and then, here and there. Huge multi-ton slabs of rock. So it hasn't all fallen until it reaches the surface and leaves a big sink. You just look at the ceilings of those rooms, and you see that they are all fracfured Huge slabs just waiting to fall. And the problem is that you never know when one will fall. You can only hope that its not one you;re under at that time. That slow breakdown will continue for centuries of millenia until its all collapsed. And BTW, if I'm not mistaken, It's been surveyed to 6 miles and change.

[@melissalove2463]

I would love to know what’s the strangest , weirdest , scariest things you have come across or discovered caving ?

[@paulflur4519]

What cave is this?

[@thtyoungelwoodj2287]

Just when I was starting to think you had explored them all, bravo!

[@TheDylonias]

I love how giddy you get when you see a formation😂😂

[@davidfinkel8239]

Do you ever spend the night in any of your explorations

[@americanrejected6062]

I love your videos adventure is out there !

[@MasterHumplick]

Where is this cave and what's it called?

[@Dominickandabiegaming]

Grass is a type of plant with narrow leaves growing from the base. Their appearance as a common plant was in the mid-Cretaceous period. There are 12,000 species now.[3] A common kind of grass is used to cover the ground in places such as lawns and parks. Grass is usually the color green. That is because they are wind-pollinated rather than insect-pollinated, so they do not have to attract insects. Green is the best colour for photosynthesis. Grasslands such as savannah and prairie where grasses are dominant cover 40.5% of the land area of the Earth, except Greenland and Antarctica.[4] Grasses are monocotyledon herbaceous plants. They include the "grass" of the family Poaceae, which are called grass by ordinary people. This family is also called the Gramineae, and includes some of the sedges (Cyperaceae) and the rushes (Juncaceae).[5] These three families are not very closely related, though all of them belong to clades in the order Poales. They are similar adaptations to a similar life-style. With about 780 genera and about 12,000 species,[3] the Poaceae is the fifth-largest plant family. Only the Asteraceae, Orchidaceae, Fabaceae and Rubiaceae have more species.[6] The true grasses include cereals, bamboo and the grasses of lawns (turf) and grassland. Uses for graminoids include food (as grain, shoots or rhizomes), drink (beer, whisky), pasture for livestock, thatch, paper, fuel, clothing, insulation, construction, sports turf, basket weaving and many others. Many grasses are short, but some grasses can grow tall, such as bamboo. Plants from the grass family can grow in many places and make grasslands, including areas which are very arid or cold. There are several other plants that look similar to grass and are referred to as such, but are not members of the grass family. These plants include rushes, reeds, papyrus and water chestnut. Seagrass is a monocot in the order Alismatales. Grasses are an important food for many animals, such as deer, buffalo, cattle, mice, grasshoppers, caterpillars and many other grazers.

[@seanstevenson7592]

Thanks Edward. Again another awesome adventure. But I got to know what was that red light at 25 minutes and 10 seconds off in the distance in the evening parallel direction you guys were going look like another pathway or someone standing up there

[@seanstevenson7592]

Sorry, stupid talk to text don't understand my southern accent. lol Not evening, duh.. but while on explorers cruz

[@Underground_Adventures]

I layed a trap and waited.

[@Linda-eu9zh]

That Looks Megalithic

[@enkrypt3d]

dude u guys seem like a blast man. what an epic trip! just watch out for the LIZZAD PEOPLE! as AJ says

[@rustafar_2354]

Nice one guys !! 👍👍

[@davidcurry9292]

This cave would be cool to take a yard/house battery operated Christmas light mounted in yard that displays a projected light onto house,like a kaleidoscope. It would be trippy.

[@ChrisMuncy]

What headlamp are you guys using? Looking ro replace my current one and your seem to be pretty amazing . Love the videos. Be safe out there

[@dreamseer7]

One side American, the other side Canadian? This first place is big enuff to play hockey in? Hell-oo-oo-oo. I sure like to hear you guys interact and talk. The perfect circle is beautiful isn't it. Shining your cool lumens on your buddies, listen to that power tho. Who is it with the cute Southern drawl? I have a Texas drawl, so just curious. Dragons teeth hanging from the ceiling there. BIG caverns like my new Zelda game. Dayum. The higher yall get the more interesting it is. I love geodes. Cave pearls I call those little ball things. How deep is the crazy pool, and what's in it? I love the pink. Needs some Hello Kitty. ;) Ah the sounds of night. Thanks so much guys for this trip.

[@Underground_Adventures]

The thick southern accent would be mine. :)

[@dreamseer7]

Cool. I have some cousins from Arkansas. And their accents are much thicker even than yours. Thanks for sharing with everyone. @@Underground_Adventures

[@Mitchcraft.]

I wonder what created that kind of cave with that huge dome like shape for the roof.

[@R3TR0R4V3]

Water for one.. I believe that underground river formed most of that, like the long hallway part.

[@donnajackson3632]

Wow 👌 👏 😊

[@CantrellCaving]

The raft was the icing on the cake haha

[@MikeOrkid]

That place is unbelievable. The cool thing is that there's a whole outside above it.

[@KyleC2OO7]

The space in that cave is insane!

[@roscoe454]

wow good cave and that flashlight is bright!

[@jakothegreat834]

The particles in the air look thick! Any potential residual sickness/danger with dust particulates? Aside from modern every day particulates for the trolls 🙄

[@onazram1]

What state are you in here?

[@1993kawasaki]

Y'all need to try a UV light in these caves to see if there are anything else that is illuminated!

[@jwalster9412]

"hes over there, in the orange shirt" *Points to single white dot*

[@sethicus98123]

Where is this cave?

[@kathleenmacfarland1817]

IT’S A MELTED BUILDING!!!!!!!! TARTARIA POCKET OF SURVIVAL+++

[@EyesofZoey]

Awesome the big round room. Was probably filled with water once!?

[@HKZ0210]

When World War 3 break out I will be shifting with my gf in this place..😅

[@ronaldcoad9249]

Awesome video !! You guys should go on that other river. In the first big room, in kayaks and find out where it goes.

[@Patti-b-luvin-billie]

so many treasures in this one!

[@ickiedeer-lamb7282]

Hey duuuuuuuuudes ❤ I actually look forward to the dude count in the end.❤❤❤❤❤😂

[@isntrael]

Can you dig through the mud plug

[@Pax621]

My dude found the boss room.

[@NinoSivro-qx3zc]

I become addict to this channel 😅 good job and stay safe guys 💪👍

[@rubenpuls353]

How and when did these massive caves form? Melting water from the last ice age? I don't see them being created by small streams of water or could they?

[@JerryR1776]

What state is that in?

[@scottysworld700]

Y'all need to do Merch. You would make lots of money and could do this full time.

[@Bill_Russell_aka_Coolbreeze]

Absolutely amazing! Your videos never disappoint 🔥🔥🔥

[@RandyCollins-tw4or]

i'm too claustrophobic to ever do anything like that but love watching you go there. i have to look away when you get stuck or are in very tight places now and then to let myself calm down before i can resume watching, but I keep coming back. thank you for all you do. singed... those of us who cant even get through an MRI machine, lol.

[@bladesandedc]

Whats the name of this cave and is it in the Appalacians?

[@alextarpley4375]

its in TN