May 17, 2024 | 20:57 GMT +7
May 17, 2024 | 20:57 GMT +7
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(VAN) The Vietnamese - British cave expedition team discovered 22 new caves in the Phong Nha - Ke Bang National Park area and Minh Hoa and Tuyen Hoa districts.
(VAN) The United Nations Educational, Scientific and Cultural Organization (UNESCO) has recognized Phong Nha - Ke Bang as a World Natural Heritage since 2003.