Hang Sơn Đoòng
Quảng Bình, Vietnam
Adventure
Sơn Đoòng Cave, in Phong Nha–Kẻ Bàng National Park, Quảng Trị 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.
From Wikipedia, CC BY-SA 4.0
Been here? Collect this stamp in your own passport and share it with friends.
Collect this stampI already have an account