A whole world discovered by accident

This cave and the whole lost world in it was discovered in 1991 by a Vietnamese farmer. The cave is recognized as the largest cave in the world, of course, it is as high as a 40-story skyscraper. It has its own flora and fauna, its own rivers, its own jungle.

This natural wonder is located in the Vietnamese National Park Phon Nha-Ke Bang, 200 miles south of Hanoi. The cave has been named Son Doong-grottan, which means mountain river cave. Scientists say it is about five million years old.

Nowadays, hiking tours are organized to the cave. For example, a 7-day tour costs $2300. Let’s take a virtual tour and see this fascinating underground world.

The cave is a total of 87 kilometers long.

Rare pearls can be found in the cave, formed over many, many hundreds of years.