Introduction to Nanlao Spring: Nanlao Spring is known as the "No. 1 Spring in Jinyang". The spring water gushes out from the rock formations at the foot of Xuanweng Mountain, with an undercurrent of more than ten meters. It is injected from the stone-carved dragon mouth on the west bank of the pond. The water seems to be flying in vain, but it sounds like an ensemble of musical instruments, constituting the "Sound of the Hard-aged Spring", one of the eight scenic spots in Jinci Temple. The spring water temperature is always 18℃, warm in winter and cool in summer, as clear as jasper, and flows continuously regardless of drought or flood.