Introduction to Lin Jiquan: Lin Jiquan is located east of Diaoyutai in Foyu, on the cliff on the east side of the valley. The spring water gushes out from the stone cave all year round. The three characters "Lin Jiquan" in official script are engraved on the stone wall above the spring. Next to it is an inscription from the 54th year of Qianlong's reign in the Qing Dynasty (1789), which is still vaguely identifiable today.