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Located near the Laos–Vietnam border, Hang Sơn Đoòng has an internal, fast-flowing subterranean river and the largest cross-section of any cave, worldwide, [2][3] believed to be twice that of the next-largest passage. It is the largest known cave passage in the world by volume.
5 lip 2019 · Hidden beneath the lush jungles of central Vietnam lies a deep subterranean labyrinth that holds three of the world’s four biggest caves.
27 sie 2024 · The world’s largest cave, Hang Son Doong (Mountain River Cave) was discovered in the dense forests of Vietnam’s Phong Nha-Ke Bang National Park in 1990 by a local man, Ho Khanh, as he was seeking shelter from a storm.
4 paź 2024 · Discovered in 2009, this underground marvel, nestled in Vietnam's Phong Nha-Ke Bang National Park, boasts its own localized weather system and a river running through it. Its uniqueness lies not just in size but in the breathtaking ecosystems and geological formations it harbors.
Phong Nha Cave is a cave in Phong Nha-Kẻ Bàng National Park, a UNESCO World Heritage Site in Quảng Bình Province, Vietnam. It is 7,729 metres long and contains 14 grottoes, as well as a 13,969 metre underground river.
The cave becomes unique with the 2 enormous hố sụt (cave roof collapses or dolines) and underground rainforests as well as the “Great Wall of Vietnam” – a 90m high calcite barrier. There are various unusual cave formations including towering stalagmites, phytokarst and huge cave pearls inside.
Find the underground river and 'The Great Wall of Vietnam. Son Doong has a large underground river, and two river crossings. The final achievement whilst exploring Son Doong Cave is to climb...
