Dau Iso Waterfall

Dau Dang Waterfall is located on the Nang River, between Bac Kan and Tuyen Quang. The Nang River flows through Lung Yan limestone mountain to form Puong Cave, flowing to Hua Tang village when it is blocked by hundreds of large rocks to form a waterfall. Dau Dang Waterfall is more than 1,000 m long with 3 floors, each floor is 3-4 m apart. This tourist destination is also home to fried fish, one of the rare fish, whose children weigh up to several tens of kilograms.