Black Tiger Spring. [Photo provided to chinadaily.com.cn]

Black Tiger Spring is located below a steep cliff in Lixia district of Jinan.

The water laps the hills, whose sound is like a tiger's growl, that's how it got its name. It's in a natural cave with a height of 2 meters, a depth of 3 meters and a width of 1.7 meters. The spring pool is made from stone 17 m wide and 3 m deep. There are three tiger head stone carvings on the southern wall. The water in flow reaches an utmost 41,000 cubic meters per day, less only than Baotu Spring. There are 14 springs surrounding Black Tiger Spring.