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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.
Phong Nha-Kẻ Bàng (Vietnamese: Vườn quốc gia Phong Nha-Kẻ Bàng) is a national park and UNESCO World Heritage Site in the Bố Trạch and Minh Hóa districts of central Quảng Bình Province in the North Central Coast region of Vietnam, about 500 km south of Hanoi.
Sơn Đoòng cave doline. During the 1990s, Hồ Khanh was living as a very poor man, trying to earn an honest living in Bố Trạch. During a jungle expedition to extract agarwood in 1991, Hồ Khanh reportedly discovered an enormous cave entrance, with a wide river flowing out of it. Without any rope or gear, Khanh did not venture further ...
Most of the rivers originate in the Truong Son Range and empty into the Sea. River and stream density is 1.1 km/km 2. There are some 160 natural and man-made lakes with total water deposit of 234.3 million cubic meter of fresh water, Quảng Bình Province's sea area includes continental shelf and special economic area up to 20,000 km 2. Off ...
The entry of Phong Nha Cave Phong Nha Cave. 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.
Hang Sơn Đoòng This page was last edited on 20 June 2020, at 21:17 (UTC). Text is available under the Creative Commons Attribution-ShareAlike 4.0 License ...
Hang Én ('swift cave' in Vietnamese, named for the birds that nest in it [1]), occasionally referred to as Én cave in English, is a cave in Phong Nha-Ke Bang National Park, a UNESCO World Heritage Site. Én is the third largest cave in the world, after Hang Sơn Đoòng in the same national park, and Deer Cave in Malaysia.
Conservation of Hang Sơn Đoòng cave: Similar to the preservation of Hanoi's Reunification Park mentioned earlier, the environmental movement in Vietnam has come out to oppose the proposed plans for building a cable car, at a cost of between $112 and $211 million, through the cave, located in Phong Nha-Kẻ Bàng National Park, and considered ...