One of the newest finds, it’s a cave explorer’s dream.
The Son Doong Cave is located within Phong Nha-Ke Bang National park, near the border of Vietnam and Laos. This cave system was a recent find, having been first “discovered” back in 1991 by a local man and “officially discovered” only in 2009 when a group of British cave explorers decided to make a survey of it. Since then, it has been revealed as the largest cave in the world, measuring in at more than 5 ½ miles of passages thus far.
