Nguom Ngao Cave
About 4km from the waterfall, Nguom Ngao Cave is one of the most spectacular cave systems in Vietnam. Created by an underground river, it extends for several kilometres underground; villagers sheltered here during the 1979 war with China.
Visitors are permitted in one section, where a 1km-long concrete path and excellent lighting have been installed. You will be on an hour-long tour of the cave network, past huge stalagmite and stalactite outcrops that resemble a waterfall and chandelier, and through a vast 100m chamber. The 10-minute walk from the parking lot to the cave is also very beautiful, threading through the limestone hills that characterise Cao Bang province, past fields of soya beans.
A second, even bigger branch of the cave system is said to extend almost all the way to the waterfall, though there’s currently no visitor access to this section.
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