Introduction to Maogu Bay: Maogu Bay is composed of a spring and a bay. Under a huge rock, a clear spring flows out. The water is pure and does not dry up all year round. The locals regard it as holy water. It is located about 80 meters southeast of the Maogu'an ruins and 40 meters northeast of the Maogu carved stone. It is said that in ancient times, Aunt Mao often drank this water, and finally she became an immortal and passed away.