Phong Nha, Vietnam
Phong Nha Cave (Vietnamese: Động Phong Nha, Vietnamese pronunciation: [ɗôŋ͡mˀ fɔ̄ŋ ɲā]) is a cave in Phong Nha-Kẻ Bàng National Park, a UNESCO World Heritage Site in Quảng Trị Province, Vietnam. It is 7,729 meters long and contains 14 grottoes, as well as a 13,969 meter underground river. While scie
ntists have surveyed 44.5 kilometers of passages, tourists are only allowed to explore the first 1500 meters.
Listen to the audio guide for Äá»ng Phong Nha Free on WIP — starts by itself when you arrive, even with the screen off