Phong Nha Caves (Phong Nha-Ke Bang National Park) - 2020 ...- nhà phân phối xà phòng arasan muốn coimbatore ,Phong Nha cave is located in the southeastern part of Ke Bang limestone block. In a strongly weathered limestone area, an area of about 10,000 km2, stretching for 200 km north of the Truong Son mountain range, connecting to Laos. - The visible surface flow is the Son, Trooc, Chay and Rao Thuong rivers originating from small streams. ...