New discoveries in underground river inside Son Doong announced
With the new discoveries during the diving expedition in the underground river inside Son Doong – the world’s largest cave, Son Doong Cave becomes a true mystery to cave experts and scientists. The remark was made by Vice Chairman of the provincial People’s Committee Tran Tien Dung, at an international press conference about the diving expedition in the underground river inside Son Doong Cave, in Hanoi on April 9.
On this expedition, the cave experts found a new tunnel system at a depth of 60 metres, the deeper it goes the wider the underground cave system opens up. The depth of Son Doong has increased to over 500 metres in total from the entrance to the final passage yet to be explored.
