Hanoi, Vietnam, Jan. 21 -- Son Doong Cave the biggest cave located in the core zone of Phong Nha - Ke Bang National Park

The park's special-use forest ecosystem remains largely intact, with forest coverage consistently maintained at around 95 percent. Numerous wildlife rescue operations have also been conducted, achieving a success rate of more than 93 percent.

At the same time, the board is finalizing a third nomination for World Natural Heritage status under aesthetic criteria, aiming to further enhance the site's international profile and establish a solid foundation for long-term conservation.

In addition, the park has implemented two provincial-level scientific research projects and documented several plant and animal species prev...