0:13 1 hour ago China: Chinese Tourists Film Rocks Falling Behind Tianmen Cave in China. StringersHub • 1h Zhangjiajie, China - May 24, 2026 This is the terrifying moment that a large sheet of surface rock suddenly broke away from the mountain behind Tianmen Cave as tourists were visiting the Tianmen Mountain scenic area. On May 25, 2026, in Zhangjiajie, Hunan, the video captured rocks peeling off from the rear side of the mountain near Tianmen Cave, one of the landmark spots at the scenic area.