Sơn Đoòng cave, in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam, is the world's largest natural cave. 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, believed to be twice that of the next-largest passage. It is …
Sơn Đoòng cave, in Phong Nha-Kẻ Bàng National Park, Bố Trạch District, Quảng Bình Province, Vietnam, is the world's largest natural cave. 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, believed to be twice that of the next-largest passage. It is the largest known cave passage in the world by volume.
AdFind the top-rated and best-reviewed tours and activities in DongHoi for 2025. Convenient and flexible cancellation up to 24 hours before your tour — no questions asked.
3 million trusted reviews · No cancellation fees · Over 60,000 activities · Top attraction tickets
AdFull Refund Available up to 24 Hours Before Your Tour Date, Quick & Easy Purchase Process. Compare Prices & Book on Tripadvisor. Low Price Guarantee!
Styles: Group, Private, Family Friendly, Independent, Solo Traveller, Family
Save
Share
More