A survey team has identified a new cave containing an exceptionally rare internal waterfall measuring around 350 metres in height in Phong Nha–Ke Bang National Park. The finding adds to the scientific and natural significance of the central Vietnamese site, according to
Vietnam News Agency (VNA), a partner of TV BRICS.
Preliminary observations suggest the cave descends approximately 350 metres in a near-vertical shaft. Water flowing from the upper section to the base forms a continuous cascade inside the cavern, creating a remarkable natural feature seldom recorded in cave environments.
Specialists involved in the expedition noted that exploration is still underway, with multiple sections yet to be surveyed. As a result, a full geological and hydrological assessment has not been finalised.
Further research and detailed mapping are planned in the coming period, with authorities indicating that additional verified data will be released once studies are completed.
Known as the “kingdom of caves”, Phong Nha–Ke Bang National Park hosts more than 425 documented caves, around 50 of which are open to visitors, including Son Doong Cave, the world’s largest cave featuring an extensive underground river system. According to the source, the presence of a waterfall of such magnitude within a cave is considered an exceptionally rare geological phenomenon.