Lying in the entrails of limestone mountains, Nguom Ngao cave, which is just 3 kilometers from the Ban Gioc Fall, is considered as one of the most beautiful caves of Cao Bang province. Nguom Ngao cave is shaped by aged old weathered limestone. With the length of 2,144 meter, Nguom Ngao cave is relative enormous and has three main entrances.

Stepping in the cave, visitors will be dazzled by wonderful sparking seven-colored stalactites hanging down from high stone cliffs. Nature is clever to create stone statues of which some look like human bodies, some look like forest plant, animals, a fairy combining her hair or a lotus bulb, etc. The cave is covered by fanciful scenery. Visitors can feel the harmony between stone and water.

Cave roof is continuously closed and open, giving the tourists a big surprise. Stalactites seem to grow from the soil, or hang down, vertical or horizontal with small and big figures piled and fixed in a hustle.

Nguom Ngao cave is awarded a national beauty of nature by the Ministry of Culture and Information, drawing attention from domestic and foreign tourists to visit.

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