University of Bristol - Historical Photographs of China reference number: Fr01-074. Photograph by Lai Fong (Afong Studio). This image is reproduced in History of Photography in China, Chinese Photographers 1844-1879 by Terry Bennett (Quaritch 2013), on page 178, and captioned: '71. Foam Curtained Cave at Wu ü, near Sing Chang'.
Water Curtain Cave, Wuyishan, near Xingcun, Fujian