Son Doong Cave in Quang Binh Province has been recognised as the largest of its kind in the world by three international organisations, including Guinness ( based in the UK), the Association World Record (based in Hong Kong) and WorldKings (based in the US and India).

Son Doong Cave was named one of the most captivating caves on earth by National Geographic (Photo: news.nationalgeographic.com)

The Viet Nam Record Association, VietKings, said Son Doong Cave is the first and only one in the world to hold titles granted by three international world record organisations at the same time.

The cave is located in the heart of Phong Nha - Ke Bang National Park, Son Trach Commune, Bo Trach District, Quang Binh Province. Son Doong was discovered by a local in 1991. It was first explored in 2009 by the British Cave Research Association, and has been open to the public since 2013.

The 1,645m-long cave system, which extends through a mountain, was named one of the most captivating caves on earth by National Geographic.

Geologists say the cave formed two to five million years ago. It is roughly 6,5km long, 200m high and 150m wide, exceeding the former world record of Deer Cave in Gunung Muli National Park in Malaysia.

(Source: VNA/ Da Nang Today)