Paths follow the the Ngoc Tuyen River through this beautiful cave for about 1km. The entrance has a series of poems carved in Chinese characters by the cave’s 18th-century discoverer, a soldier called Ngo Thi San. There’s also an intriguing carved stone plaque commemorating an early French resident of Lang Son. It's a five-minute drive south of Tam Thanh Cave.
Lonely Planet's must-see attractions
0.43 MILES
Tam Thanh Cave is vast and seductive, with a water pool inside and natural ‘window’ offering a sweeping view of the surrounding rice fields.
9.51 MILES
The Chinese side of the Sino-Vietnamese border is a quite attractive park sprinkled with old buildings, including a yellow French colonial number erected…
Nearby Northeast Vietnam attractions
0.43 MILES
Tam Thanh Cave is vast and seductive, with a water pool inside and natural ‘window’ offering a sweeping view of the surrounding rice fields.
2. Friendship Pass Scenic Area
9.51 MILES
The Chinese side of the Sino-Vietnamese border is a quite attractive park sprinkled with old buildings, including a yellow French colonial number erected…