Khe Ry Cave ( Quang Binh ) the world's longest

On 26-5 Howard Limbert , expert of British Caving Association said , after years of study , the expedition confirmed Khe Ry is the world's longest river cave.

Khe Ry Cave ( Quang Binh )

Hang Khe Ry surveyed in 1997 , then cave expedition Royal led by Mr. Limbert caving 13.8 km long river . In subsequent years , the expedition continued exploration and additional photos , maps mapping. In 2013, expedition length discovered in caves and rivers to nearly 20km and confirmed as the world's longest river cave , the cave ceiling height of 120m , boats traveling at some stage of the grotto quite comfortable. The first water source of Khe Ry River is a stream at an altitude of 1,300 meters into the cave , forming long river , which runs to the cave swallow , then dive down on Son Doong cave and then pour water into the cave system Phong Nha .

He said Limbert , the cave is the world's longest river , proving once again cave in Ke Bang limestone blocks many undiscovered hidden it.