Lung Khuy Cave is nestled in the village of the same name in Quan Ba District, Ha Giang Province. To get there, visitors must negotiate a two-kilometer hiking trail from the drop-off point at the foot of the mountain to the cave entrance.
Along the way, there are breathtaking views of mountain peaks and valleys dotted with homes of the Mong ethnic minority people. Lung Khuy Cave is around one kilometer long, and its widest part is about 200 meters. Inside the cave, there is a well-lit, snaking wooden and steel walking platform for visitors to see some natural stalactites and formations, as seen in the picture.