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…
