Son Doong has become one of the hottest places in Vietnam since 2014. Since Hang Son Doong is known by many domestic and international friends, it has become one of the most popular attractive destinations for those

Formed about 2-5 million years ago, Son Doong Cave has a width of 150m, a height of more than 200m, a length of up to nearly 9km. The estimated capacity of Hang Son Doong is 38.5 million cubic meters. With such size,