Ba Be also has a fascinating collection of caves just waiting to be explored. One of the most impressive caves in Ba Be is Puong Cave with a height of 30m and length of 300m. This large, dark cavern sits at the bottom of Lung Nham Mountain and was created by years of erosion by the Nang River. This tunnel cave looms over the river and visitors can explore the cave by boat. The dark mouth of the cave leads to a magical maze of stalactites and stalagmites which cast shadows across the tall limestone walls. This amazing hidden world is also the home of thousands of bats. The colonies living amongst nature’s sculpture are made up of an impressive 18 species.
Puong Cave is located in the Nang River of Ba Be district, Bac Kan province. It is about 5km from the Cha Ra town. The Puong Cave attracts visitors with its strange and unique stalactites and the bat community of ten thousands.
The Nang River flows under the limestone among the vertical cliffs of Lung Nham Mountain that is Puong cave. The small boat floats in the cave with the ethereal lights. Beside this magical scene with color and sound of water and light, visitors would be fascinated by the strange stalactites in the gate of the cave. There is a community of bat inside the cave with the number of tens of thousands.