Tuyên Quang Province
The "Fairy Pond" is an isolated rock basin filled with clear water that seeps through the surrounding limestone rock. However, the water level in this pond is the same as the Ba Bể Lake. The Dau Dang Waterfall () is formed by the Năng River. It consist of a sequence of rapids which stretch over a length of almost as the river flows into Tuyên Quang Province.