This lake has unique characteristics, located about 1km from the entrance of Thung cave, about 15m higher than the main underground river in the cave, creating the feeling of "hanging" on the cave wall. The lake area is determined to be about 100m², surrounded by brilliant stalactites.
According to the survey team, because of the lake's special location, the team temporarily named the lake as the Floating Lake. Due to lack of equipment, the team has not been able to measure the depth of the lake, and has not yet determined the source of water flowing into this lake.
The crystal clear lake seems to be "hanging" on the cave wall, about 15m higher than the underground river system.
In the coming time, the survey team will continue to return to Thung Cave with modern equipment to decode the mysteries of Lo Lung Lake. Currently, the water source of this lake has not been found yet, the special thing is that the lake is located about 15m higher than the underground river system. In addition, the exploration team also discovered a path halfway up the wall of Thung Cave crossing the main underground river branch.
Quang Binh Tourism Department said that when there is an official report from the exploration unit, the department will send a team to survey technical issues before exploiting the mysterious lake in Thung Cave in Phong Nha - Ke Bang National Park.
The Hung Thoong system or Thoong valley is very unique and special with many caves located deep in the strictly protected area, belonging to Phong Nha - Ke Bang National Park, surrounded by a system of million-year-old limestone mountains and primeval forests.
