容积最大的天然洞穴

韩松洞是全球已知容积最大的单体天然洞穴，发育于石灰岩地层中，形成于约 200 至 500 万年前的流水侵蚀作用。洞穴主通道全长约 9 公里，最大洞厅宽达 150 米、高逾 200 米，内部总容积超 3850 万立方米，足以容纳整座 40 层摩天大楼。洞内拥有独立的地下河系、地下雨林与局部气候系统，洞顶天窗射入的阳光孕育了独特的洞穴生态群落，钟乳石与石笋规模均为世界罕见。洞穴所在的峰牙 – 己榜国家公园 1993 年被列入《世界遗产名录》，是全球喀斯特地貌研究的核心样本地。该洞穴被洛仑斯世界纪录收录为 “容积最大的天然洞穴”。

Hang Son Doong is the largest single natural cave by known volume in the world. Formed in limestone strata through water erosion approximately 2 to 5 million years ago, its main passage stretches about 9 kilometers, with the largest chamber reaching 150 meters wide and over 200 meters high, and a total internal volume exceeding 38.5 million cubic meters, large enough to accommodate an entire 40-story skyscraper. Inside the cave are an independent underground river system, subterranean rainforests and a localized climate system. Sunlight streaming through ceiling skylights nurtures a unique cave ecological community, with exceptionally large stalactites and stalagmites. The Phong Nha-Ke Bang National Park where the cave is located was inscribed on the World Heritage List in 1993 and serves as a key research site for global karst landform studies. This cave has been officially listed by LAWRENCE WORLD RECORDS CERTIFICATION as the “Natural Cave with the Largest Volume”.