It was 1991. A Vietnamese logger named Ho Khanh was hiking through the jungle near his home in Phong Nha, in central Vietnam.
Located in the heart of the UNESCO-listed Phong Nha-Ke Bang National Park in Vietnam's Quang Binh province, Hang Son Doong is one of the most captivating destinations that can be experienced in Southeast Asia.
Americans have comprised the largest continent of visitors to the Son Doong Cave in 2018.
Six provinces and cities with strong tourism industry introduced their most attractive destinations to foreign buyers at a workshop in Ho Chi Minh City on September 5.
Exploring the famous Son Doong Cave is not as difficult as people think.
Quang Binh in central Vietnam is well-known for natural landscapes, spiritual tourism destinations and historical relic sites.