Lin Fengyan Spring: It is one of the eight scenic spots in old Deng Xin County. It is recorded in the county annals and a picture is drawn. The records of Dengxin County say that the spring water comes and goes, just like a person drinking water and stopping after a sip. When water comes, there is a "goo goo" sound under the stone, just like the throat under water, so it is called swallow spring. Most of these springs appear in limestone strata with large circulation, and limestone is dissolved by groundwater, forming some ditches and holes inside. Siphon happens when they happen to be connected together. LAM Raymond Yanquan is now one of the two marvelous springs in the south of the Yangtze River.