The complex is located at a height of nearly 500m above sea level on a limestone mountain area known as Pom Tham Be in Pa Ham commune of Muong Cha district (Photo: VNA)

 

Stalactites inside Huoi Cang Cave, part of Huoi Cang-Huoi Dap cave complex in Dien Bien province (Photo: VNA)

 

(Photo: VNA)

 

It contains important scientific values with vestiges of the earth’s formation and development history (Photo: VNA)

 

Huoi Cang Cave has a total length of over 1km while Huoi Dap Cave is 350m long (Photo: VNA)

 

Huoi Cang-Huoi Dap cave complex has been recognised as a national relic site by the Ministry of Culture, Sports and Tourism (Photo: VNA)

VNA