Hang Son Doong is the world's largest known cave, with enough space in some of its passages to fly a Boeing 747 airplane ...

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. There’s no way to ...

Take an otherworldly journey through Hang Son Doong, the world's largest cave located in Vietnam. The cave is more than 500 feet tall, 650 feet wide, and 29,500 feet long. Video courtesy of Ryan ...

A jungle inside a cave? A roof collapse long ago in Hang Son Doong let in light; plants thickly followed. As “Sweeny” Sewell climbs to the surface, hikers struggle through the wryly named ...

Scientists have discovered a new land snail species, Calybium plicatus, in the first sinkhole of Son Doong Cave, underscoring Vietnam’s extraordinary biodiversity. Specimen of the newly discovered ...

The Extremes crew had trekked for two days through steep valleys covered in lush jungle to reach Hang son Doong ... Veteran cave explorer and safety advisor Tim Fogg takes in the view of a lifetime.

HANOI, Jan 15 (Bernama-VNA) -- Vietnamese scientists have discovered a new snail species in Son Doong Cave within the Phong Nha - Ke Bang National Park in the central province of Quang Binh, and named ...