This is a giant stalactite wall about 70 m overhang at a depth of more than 6 km beneath hang Sơn Đoòng. This wall was named a "Great Wall of Viet Nam", is located deep within the cave. Walls was dubbed the great wall of Vietnam Following the walls ... Monday into the cave. The second entrance into the cave.
đang được dịch, vui lòng đợi..
