Hang Duong Thanh, Deputy Chairman of the People's Committee of Quan Ba district, said the natural wonder was the most beautiful grotto in the province.

It's untouched beauty and splendid, transparent white stalactites are said to be stunning. Measuring from one to two metres, the stalactites take many strange forms.

Some look like giant stone lithophones, others resemble towers or flowers.

During a recent visit to the grotto, provincial Party Committee Secretary Trieu Tai Vinh said it will make an ideal tourist destination.

He said his committee will help raise awareness of residents in the area about the cave system and the geological values of the plateau.