Caving in Vietnam

Hue, March 27, 28; Phong Nha-Ke Bang National Park area March 29 – April 2, 2016 We hiked 4 kilometres (km) into a cave and the ceiling height where we stand is 70 metres high (22 stories).  Our head lamps provide the only beam of light in the pitch blackness. Fine moisture and sand particles … More Caving in Vietnam