A Lost World Below The Surface; Drone Footage Of World’s Biggest Cave (Video) – November 18, 2017

A subterranean paradise: Russian travelers capture drone footage of world’s largest cavern.

A small team of Russian travelers recently managed to acquire drone footage of the Son Doong Cave – the largest known natural cave in the world. Nestled in the emerald rainforests of central Vietnam, the Son Doong cave is one of the most pristine natural formations in the world. First discovered by a local Vietnamese logger named Ho Khanh in 1991, the exact location of this natural wonder was lost to the world until its rediscovery by British explorers led by Howard Limbert in 2009.

Formed over 2 million years ago from a cave-in caused by a mountain river, the massive Son Doong cave stretches over 5 kilometers in length and boasts a massive size of 150 meters by 200 meters. An entire city block could easily fit in its cavernous depths. With an estimated volume of 38.5 million cubic meters, this gargantuan cave is twice the size of the Malaysian Deer Cave – now the second largest cave – effectively dethroning the latter as the largest cave in the world.

Read more & video at: eraoflight.com