During the Vietnam War, North Vietnamese soldiers hid ... For cavers like the Limberts, discovering a cave as big as Hang Son Doong is like finding a previously unknown Mount Everest underground.

Vietnam is known for karst landscapes characterized by rich biodiverse caves that researchers say likely host more new species. Nguyen, Stoev, and Vu (2025) Zoosystematics and Evolution Vietnam is ...

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 ...

Hidden beneath the mountains of Lang Son lies Khuon Bong Cave, where visitors experience thrilling adventures and stunning underground landscapes. An expedition team of Jungle Boss Trekking Tours of ...