Documentary about the caving expedition of the Northern Lao – European Cave Project to the remote province of Houaphan in Laos in 2007. Caves near Vieng Xai have been visited and documented in cooperation with the local tourist and development authorities. Further information can be found at

By : Joerg Dreybrodt

Original title : Hidden cave cities and river systems – Laos 2007

Languages : English
Sous-titres : No Subtitle

Release date : 06/08/2008

Club / structure : Northern Lao – European Cave Project