Two new caves have been discovered at the UNESCO world heritage site, the Phong Nha- Ke Bang National Park in the central province of Quang Binh, said well-known cave explore Ho Khanh on Thursday.

The "97" cave

Khanh, who found the caves and named them “97” and “98,” which are the years he got lost in the deep forest of the national park in an exploration trip and had a chance to explore the geological formations there, said “97” is 765 m long and “98” is 750 m long and both are at least 60 m high.

Different from most caves of the park that have rough floors, the floors of these newly found caves are flat like a man-made structure.

Khanh said the two caves are located in the Doong area, which is home to Son Doong, the world’s largest cave discovered in 2009 also by Ho Khanh and a team of British cave explorers from the British Caving Association.

Before the discovery of Son Doong Cave, Phong Nha-Ke Bang held several world cave records such as the longest underground river and the largest caverns and passageways.

The "98" cave