Located in the heart of Phong Nha-Ke Bang National Park in central Vietnam, the Dong Son Cave is a spectacular natural wonder that attracts thousands of tourists every year. The cave, which was only discovered in 1998, has quickly become one of Vietnam's most popular attractions, thanks to its stunning natural formations, unique geology, and rich history.

Geologically, the Dong Son Cave is a karst cave, formed over millions of years by the dissolution of soluble rocks such as limestone. The cave system stretches for over 2.5 kilometers, with a main entrance that is 15 meters wide and 13 meters high. The cave is named after the nearby Dong Son village, which is known for its bronze drum-making tradition and is located just a few hundred meters from the cave entrance.

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