A part of Tien Son Cave. Photo phongnhacavestour.com

Originally called Dry Cave, Tien Son Cave was discovered in 1935 in the limestone mountains of Ke Bang. The Phong Nha – Ke Bang caves consists of the Phong Nha Cave system, with 9 caves of various sizes.

The spectacular Tien Son Cave is the most magnificent limestone cave in Vietnam and just opened in 2000.  It is about 400 metres away from the famous Phong Nha Cave and at a height of 135m.

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

VNS

Detailed map for 404 caves of Phong Nha cave system created

After some 30 years of research, experts from the British Royal Caves Association (BCRA) has created a detailed map for 404 caves that have staggering length of 231km in Phong Nha-Ke Bang National Park in Quang Binh Province.

Quang Binh to slash entrance fees to caves

Visitors to Quang Binh Province will enjoy a 50% discount on tours to some famous caves in the area.