About Thang Hen Lake
Thang Hen Lake is a natural freshwater lake in Quoc Toan Commune, Tra Linh District, Cao Bang Province, northern Vietnam, about 30 km from Cao Bang city. Part of a system of 36 interconnected lakes at around 1,000 meters elevation within the Non Nuoc Cao Bang UNESCO Global Geopark, it is noted for its emerald water, karst peaks, and forested surroundings. The lake supports boating and is linked to local Tay legends.
Visitors guide
Visitors can expect a large emerald-green mountain lake surrounded by karst peaks and pine forests at about 1,000m altitude. The lake is shaped like a diamond and is part of a system of 36 interconnected lakes. Visitors can walk along the lakeshore, take in views of limestone mountains, take small boat or bamboo raft rides on the lake, photograph the scenery, and explore nearby grasslands and trails used by local Tay herders.
Key highlights
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Natural freshwater lake at ~1,000m elevation within Non Nuoc Cao Bang UNESCO Global Geopark
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Part of a system of 36 interconnected lakes with emerald-green water
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Scenic karst mountain and pine forest landscape
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Boat and bamboo raft rides on the lake
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Diamond-shaped lake with distinctive seasonal water level changes
History of Thang Hen Lake
Thang Hen Lake is a key geosite within the Non Nuoc Cao Bang UNESCO Global Geopark, recognized for its karst landscape formed over millions of years. The system of 36 lakes demonstrates karst hydrology with interconnected surface and underground water systems.
Culture & Context
The lake is associated with a legend of the Tay ethnic group about a young man named Sung whose beekeeping led to the creation of the 36 lakes. The area remains inhabited by Tay communities who graze cattle and maintain traditional stilt houses around the lake system.
Route
| By road | Approximately 30 km northwest of Cao Bang city via National Road 3 and provincial roads to Quoc Toan Commune; accessible by car, motorbike or taxi, followed by a short walk to the lakeshore |
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