Tien Son Grotto

The grotto looks marvelous inside with hundreds of stalagmites and stalactites of different sizes and shape.

The site is now on the list to be recommended to UNESCO for recognition as a World Heritage Site.

Tien Son Grotto was discovered in April 1935 in the limestone mountain of Ke Bang. It is about 400m away from the famous Phong Nha Grotto and at a height of 135m.

Tien Son Grotto is more than 980m long. Going into the cave for about 400m, visitors will see an abyss, about 10m deep. Then comes another part of the cave, about 500m long is rather dangerous for walking. At present, nearly 400m of the cave have been installed with lighting system to make it safe for visitors.

Some look like a man or an animal, and there is one that looks like the Learning Tower of Pisa in Italy. On the cave ceiling, there are glittering gold and silver-like veins. Some stalagmites produce an echoing sound when slightly knocked.

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