Introduction to Manna Spring: "Manna Spring" is located to the west of Wenchang Palace. It is the highest spring among the five springs. It is protected by a solitary pavilion and has a slender source. It does not dry up after long periods of rain or drought. Drinking it is like manna. According to legend, this spring is named after the meaning of "when the world is at peace, nectar will fall from the sky".