A mysterious lake has been discovered in the Thung Cave within the World’s Natural Heritage Phong Nha-Ke Bang National Park in the central province of Quang Binh.

THE EXPANSION of highways and new irrigation projects were the primary concerns raised concerning the world heritage status of the Dong Phayayen-Khao Yai Forest Complex, with a report on the issue to be handed to the World Heritage Centre on February 1.