Shuidonggou Ruins

Shuidonggou lies about 19 kilometers east of Yinchuan in Lingwu, near Yinchuan Hedong Airport, and combines one of China's earliest excavated Paleolithic sites, first investigated in 1923 and dated to roughly 40,000 years ago, with a later stretch of Ming-dynasty Great Wall and a network of defensive tunnels and trenches cut into the loess canyon. The site is laid out as a geological and archaeological park, with marked excavation areas showing stone-tool findspots from the original Paleolithic digs, alongside reconstructed sections of rammed-earth wall and underground passages that visitors can walk through on foot. A canyon trail links the prehistoric excavation zones with the Great Wall sections, passing eroded loess cliffs, a reconstructed beacon tower, and narrow tunnel sections used historically for troop movement and defense. Most visits take two to three hours, covering the small on-site exhibition hall, the canyon walk, and time inside the tunnels. Morning is the most comfortable time to walk the canyon and tunnels, both for cooler temperatures and because the low-angled light shows the eroded loess formations to best effect; the tunnels themselves stay cool regardless of season. Visitor numbers are generally lighter here than at Yinchuan's more central sites, though tour groups do pass through around midday.