Thac Ba Lake in Chay river basin in Yen Bai province. Ho and Hydropower Plant was built from 1964 to 1971, is one of the largest artificial reservoirs in Vietnam and is considered one of the symbolic works for the country during the construction phase of the Social Master Meaning in the North.
With more than a thousand islands, large and small (1,331 islands), Thac Ba Lake has been dubbed the "lake of thousands of islands" between a majestic and majestic mountainous area, recognized as a national landscape. Besides, Thac Ba Lake is located in a unique cultural space - "Chay River Cultural Area", which also preserves many unique values of life, cultivation, culture, beliefs ... of people. Ethnic minorities in the mountains such as Dao, Tay, Nung, Cao Lan ... All create advantages to develop Thac Ba lake to become an attractive destination in the region.