The World's Largest Cave: It Has a Forest, a River, and Clouds Inside

Thank you, Opera, for sponsoring this video! Upgrade your browsing experience with Opera: https://opr.as/03-Opera-browser-ruhicenetvideos If you want to learn more about Son Doong or visit Son Doong, you can check Oxalis's website: https://www.oxalisadventure.com Son Doong, the largest cave on our planet. This cave is so massive that it has a completely self-sustaining ecosystem with its own climate conditions. Hundreds of meters underground, the clouds you're used to seeing in the sky form inside this cave. Son Doong even has an untouched prehistoric rainforest hidden far below the surface and a vast underground river. From transparent fish to colorful monkeys, over 250 endemic plant and animal species live in this underground world. Seven new animal species were recently discovered here and are unique to this place. Stretching 9 kilometers in length, this cave holds 38.5 million cubic meters of space. And its passages are so enormous that a 40-story skyscraper could fit inside and its giant stalagmites are rising like the towers of ancient cities. Walking inside, it’s impossible not to feel as small as a tiny bug. Son Doong even contains phytokarst rocks, which move towards the sun like semi-living organisms. Rare cave pearls and many other unique formations are also found here. For 3 million years since its formation, the world had no idea about this cave's existence until it was fully explored in 2009 in Vietnam. Now, it’s time for you to see the largest cave on earth. Individual access is forbidden to protect both visitors and the fragile environment. This expedition is operated by Oxalis, the only authorized agency. Note: This video contains a paid promotion! Also, the flooding footage between 2:09 and 2:13 are shot by Ryan Deboodt. Subscribe to our channel from here ► https://goo.gl/MKi8tn "Rediscovery" Series ► https://www.youtube.com/playlist?list=PL40Eh9f0PRRXcCkyKxrtRvE3tbmcKYvHr Our team that worked in this project: https://docs.google.com/document/d/1FeIJFc-E-iDfIRFouXDBEo2VIKwN7E6hZET_99QbQM4/edit?tab=t.0 Journey to the Center of the Earth (It Took 8 Days, I Lost 10kg) ► https://youtu.be/OPUTLWhhqCo Visiting the Fattest, Most Cigarette-Addicted and Least Visited Country 🇳🇷 ► https://youtu.be/eUJgq9HerDQ Visiting the World's Hottest Place (70°C, 159°F) LUT DESERT ► https://youtu.be/NhyDkHaUC8U Visiting the World’s Most Daпgeгous Road: “Karakoram D℮ath Road” (There are casuaIti℮s!) ► https://youtu.be/FryCzL17YRs Visiting the MOST AIR POLLUTED CITY in the World (Dust Hell) ► https://youtu.be/zC4saZg6sG0 Visiting the COLDEST CITY in the World (-71°C, -96°F) YAKUTSK / YAKUTIA ► https://youtu.be/Fz4ZMLsPzqM 8 Crazy Experiments at -55°C, -67°F (The coldest city in the World: Yakutsk) ► https://youtu.be/ExoOL2lwlWE World's Poorest Country "Burundi" (I can’t forget the things I saw) ► https://youtu.be/n0gFsHf9cIw My name is Ruhi Çenet, I'm an independent documentary maker. I go to unique places or meet unique people and investigate or analyze them with a unique approach. My motto is "curiosity is the best guide". Join me, let's learn something different... Instagram ► https://www.instagram.com/ Twitter ►https://twitter.com/ruhicenet