Ngườm Ngao Cave (Vietnamese: Động Ngao) is a limestone cave situated in Bản Gun village, Đàm Thủy commune, Trùng Khánh district, Cao Bằng province, Vietnam. Positioned approximately 3-5 kilometers from the renowned Bản Giốc Waterfall, this cave represents a pivotal geological formation in northern Vietnam, characterized by intricate stalactite and stalagmite structures. The cave extends 2,144 meters in length, featuring three primary entrances and a consistent internal temperature of 18-25°C. Discovered in 1921 and surveyed in 1995, Ngườm Ngao Cave opened to tourists in 1996, drawing visitors to its natural wonders. [URL=https://en.wikipedia.org/wiki?curid=81722892]View More On Wikipedia.org[/URL]