Pingxiang City, Jiangxi Province, People's Republic of China
Length
4,200 metres (13,800ft)
Yilong Cave (simplified Chinese:义龙洞; traditional Chinese:義龍洞; pinyin:Yìlóng Dòng; lit.'righteous dragon cave') is a 180-million-year-old karst cave located in Pingxiang City, Jiangxi Province, People's Republic of China.[1] Also known as Nielong Cave (孽龙洞/孽龍洞 literally evil dragon cave), the cave extends to around 4,200m (13,800ft) in length. Inside there are unusual rock formations, small streams and waterfalls.