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Phong Nha Cave: Unknown 7,729 m (25,358 ft) karst UNESCO World Heritage site; Quang Binh province Sơn Đoòng cave: 150 m (490 ft) 9,000 m (30,000 ft) karst Reputed to be the largest in the world; Quảng Bình Province Tam Cốc-Bích Động: Unknown 125 m (410 ft) karst Complex of three caves; Ninh Binh province Thiên Đường Cave: Unknown
Formed in Carboniferous/Permian limestone, the main Sơn Đoòng cave passage is the largest known cave passage in the world by volume – 3.84 × 10 7 m 3 (1.36 × 10 9 cu ft), according to BCRA expedition leader Howard Limbert. It is more than 5 kilometres (3.1 mi) long, 200 metres (660 ft) high and 150 metres (490 ft) wide.
This is a list of caves of the world that have articles or that are properly cited. They are sorted by continent and then country. They are sorted by continent and then country. Caves which are in overseas territories on a different continent than the home country are sorted by the territory's continent and name.
According to the Ministry of Culture, Sports and Tourism, Tràng An was the most popular World Heritage Site in Vietnam, attracted more than 6 million visitors and raised 867.5 million VND in 2019 alone. [8] In addition to its World Heritage Sites, Vietnam also maintains seven properties on its tentative list.
The world's largest cave is so big that a Boeing 747 could fly through its largest cavern unscathed. It could fit a Manhattan city block complete with 40-story skyscrapers and has its own weather ...
Hence, the river caves that are at a lower elevation are much younger than the higher, dry caves as they were more recently created. The river caves in this system such as Ken Cave and Tu Lan Cave are very young, only about 3 million years old. The higher, dry caves (dry Tu Lan and Ton Cave) are much older, and date around 5 million years old.
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.
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related to: caves in vietnam national geographic map of the world 200 bc canada history