After strict limits were placed on the world's largest cave, Sơn Đoòng, authorities have reported striking changes.

(VOVWORLD) - Tours to Son Doong cave in Quang Tri province, the world’s largest cave, are fully booked for 2026 and 2027, tour operator Oxalis Adventure said. The long wait-list is a testament to the ...

VOV.VN - Tours to Son Doong, the world’s largest cave, are fully booked until the end of 2027, the operator said, as demand for adventure travel in central Vietnam continues to surge. Tours to Son ...

Sau hơn 12 năm kể từ ngày chính thức đưa vào khai thác (1/8/2013), Hang Sơn Đoòng - hang động tự nhiên lớn nhất thế giới thu hút hơn 8.500 người khám phá và tiếp tục cho thấy sức hút khó tin khi tour ...

Deep inside the remote jungles of central Vietnam lies a hidden world so surreal that it feels like science fiction brought to life. Hang Sơn Đoòng is the world’s largest cave. It's a natural wonder ...

In the remote highlands of central Vietnam, near the border with Laos, scientists and explorers have uncovered one of Earth’s most extraordinary natural environments—hidden beneath the surface for ...

Sulfur caves are among the most extreme habitats on Earth. They are completely dark and filled with hydrogen sulfide gas, which is toxic to most life-forms. Inside, species’ survival depends on ...

In the heart of central Vietnam, where limestone mountains rise like ancient sentinels and underground rivers carve their way through the earth, Phong Nha-Ke Bang National Park has once again claimed ...