A jungle inside a cave? A roof collapse long ago in Hang Son ... swifts are diving and cutting in the brilliant column of sunshine. The tableau could have been created by an artist imagining ...

Most of those who responded described the cave as triangular with a stone column supporting a stone overhang. That type of description would be classified by archaeologists as a rock shelter ...

it is considered a living cave, meaning its stalactites and stalagmites are still growing due to the consistent humidity. Highlights include the awe-inspiring Kubla Khan column, towering at nearly ...