This Is The Largest Known Cave in the World, and It Is Breathtaking

The Geological Makeup Of Son Doong

The Son Doong Cave was created over 2.5 million years ago. According to geologists, it is considered very young compared to Asia’s karst system that is estimated to be about 400 to 450 million years old. The karst system is one of the oldest in the world.

The Rao Thuong River runs through the cave, creating an enormous tunnel from the eroded limestone and creating sinkholes in the process. Up on the roof of the cave, large holes known as dolines allows sunlight to enter the cave. Some of the dolines were first created as early as 300,000 years ago.
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