

Mysteries of the Mekong
Laos: The Karst Caves
TV-PG
S1 • E4 Sep 20, 2017 50mSqueezed between South East Asia’s two most formidable geographical barriers - the Annamite mountains and the Mekong river, lies Khammouane – a rugged karst landscape, honeycombed with countless caves. These caves were formed by water flowing down towards the Mekong.