Impressive karst landscape with some of the largest caves in the world such as the Son Doong Cave. Here is located the longest known cave river in the world.
| Location, GPS coordinates: | 17.5912 N 106.2836 E |
| Categories: | Karst landscapes |
| Values: | Geology, Visual |
| Rating: |  (4 / 5) |
| Where is located? | Asia, Vietnam, North Central Coast, Quảng Bình Province |
| Name in Vietnamese: | Vườn quốc gia Phong Nha – Kẻ Bàng |
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