Thanh Thuy Hot Springs
- Location
- Bảo Yên, Vietnam
- Water type
- radioactive
- Temperature
- 45 °C
- pH
- 7.2
Water profile
Relaxing — deep, immediate muscle release.
Rich in active gases or metals — a strong mineral character.
Soft water — natural, classic buoyancy.
Thanh Thuy Hot Springs in Phu Tho province is the principal geothermal site of Vietnam's most thermally active region in the Red River valley foothills, where mildly radioactive radon-bearing water emerges from the geological structures of the Indochina block basement, appreciated within a long thermal tradition associated with well-being. The Thanh Thuy thermal area has developed into a cluster of hot spring resorts serving Hanoi's urban population as a weekend wellness destination. The surrounding Phu Tho province — the cradle of Vietnamese civilisation as the ancestral homeland of the Hung Kings — provides a profoundly symbolic national context for this major regional thermal destination.