A Man Found A Hidden Amazing Cave-The Largest Cave In The World

In 2009 a team of British cavers went to the area with Mr Khanh to explore a number of entrances. The first one they saw turned out to be Son Doong. Not only was it a significant cave, but probably the most significant cave in Vietnam and perhaps the world. After surveying (measuring and mapping the cave), they discovered its full dimensions. After further research they determined Son Doong to be the largest cave passage in the world. Other spectacular features make Son Doong an amazing place; underground rivers, huge formations, dolines or skylights, ancient fossils, unique species of fish and insects, plants and trees inside the cave.