Hang Son Doong cave — the name means "Mountain River" — is young compared with other limestone caves. It formed 2 to 3 million years ago inside the biggest limestone massif in Asia, a colossal ...

Cave pearls: Not all of the magnificent formations that can be found in Hang Son Doong are massive. Towards the end of the chambers rare, spherical "cave pearls" are also found.

Hang Son Doong Cave’s unique ecosystems Sometimes it’s difficult to imagine a place that has managed to remain in isolation for so long. But Hang Son Doong is a reality and it is a unique place.

Hang Son Doong, located in Vietnam’s Phong Nha-Ke Bang National Park, is the world’s largest known cave, with vast passages so immense that a Boeing 747 could fly through them.This limestone ...

Exploring Son Doong is not for the faint of heart. Accessing the cave requires specialized equipment and the assistance of expert guides, as visitors must descend steep walls nearly 85 meters high.

The world’s largest cave is over five miles long - so big that even a Boeing 747 could fit inside it. Hang Son Doong is in Phong Nha-Ke Bang National Park in Vietnam, near the border with Laos ...

At the end of Hang Son Doong stood the Great Wall of Vietnam, a 200-foot barrier to be conquered by both ladder and rope climbing. In a cave there’s no way to get a signal.

I realise how Son Doong stayed hidden for so long as we reach the opening and descend 80m (262ft) underground, using ropes. The enormous cave passage slowly appears as we lower ourselves down, and ...

And blind cave fish living in what is considered the largest cave in the world, Hang Son Doong, in Vietnam. It took the crew two days of trekking through the jungle, carrying provisions and gear ...

Cave pearls: Not all of the magnificent formations that can be found in Hang Son Doong are massive. Towards the end of the chambers rare, spherical "cave pearls" are also found.

Hang Son Doong cave — the name means "Mountain River" — is young compared with other limestone caves. It formed 2 to 3 million years ago inside the biggest limestone massif in Asia, a colossal ...