According to the park management board, the cave, named “Cha Ngheo”, was identified by a joint Vietnamese–British expedition team during a recent survey.

Initial findings show the cave is structured as a vertical sinkhole, measuring approximately 583 metres in length, 45 metres in depth and located at an elevation of around 751 metres in Kim Dien commune. The vertical shaft leads down to an underground stream.

One of its most striking features is a waterfall cascading from above into the cave, a phenomenon experts describe as relatively rare within cave systems.

Despite initial access, large sections of the cave remain unexplored, and further studies will be needed to fully assess its scale, geological structure and scientific value.

The discovery is part of a broader survey effort conducted over the past month, during which expedition teams identified 24 new caves and added data on three previously known ones, significantly expanding knowledge of the region’s cave network.

Phong Nha–Ke Bang National Park, often referred to as the “Kingdom of Caves”, is home to more than 425 recorded caves, around 50 of which are open to tourism. It also hosts Son Doong Cave, along with other notable caves such as Hang En and Hang Pygmy.

With its continuous limestone formations and relatively undisturbed geology, the area is considered highly favourable for the formation of large and complex cave systems.

The discovery of Cha Ngheo cave is expected to contribute to scientific research and may open up new opportunities for sustainable tourism development in the future.

The park management board plans to conduct further detailed surveys and release more comprehensive findings by the end of April.

Son Doong cave featured on US television program “60 Minutes”

VOV.VN - A special program on Son Doong Cave, the world’s largest cave, aired on 60 Minutes at 7:00 p.m. on March 29 U.S. time, equivalent to around 7:00 a.m. on March 30 in Vietnam, the Quang Tri Department of Culture, Sports and Tourism said.