Hang Sơn Đoòng được hình thành khoảng 2-5 triệu năm trước, Hang có chiều rộng 150
Last month 8/2013 electric lighting systems and floor coatings directed by dynamic Korean foreign experts design
Phong Nha Cave was discovered in 1899 for the first time, and then it is used
Ecotourism point Springs Trailer is located about 20 minutes Phong Nha car. After visiting the magnificent
Tra Ang springs located along 20 – Decision Win section from km 10 to km 16,
Famous geographer Le Ba Thao had assessed this rocky massif to 10,000 km2 wide, lies perched