Feilaifeng, also known as Lingjiufeng, is 168 meters high and its body is composed of limestone. Because of the long-term erosion of groundwater, Feilai Peak has formed many fantastic and changeable caves, such as Longhong Cave, Yuru Cave, Shexu Cave, Huape Cave, etc. The cave has a long history and is very legendary. The hall rocks of Feilaifeng are like dragons, elephants, crouching tigers and apes, which seem to be a stone zoo. Old trees and vines on the hills are disjointed; rock bones are exposed and peaks and edges are cut. Yuan Dao of the Ming Dynasty was once the first to fly to "the peaks on the lake. " According to previous records, there were 72 holes in Feilaifeng in the past, but most of them have been obliterated due to the age. Most of the remaining holes are concentrated on the southeast side of Feilai Peak.