Heilongtan Park is an ancient scenic area located in the northern suburbs of Kunming City. Heilongtan Park is composed of ancient buildings and two scenic spots "Longquan Tanmei". Qingren Shuoqing titled "two trees plum blossoms a pool of water, four times misty rain half-mountain clouds", which is the park landscape characteristics. Legend has it that black dragons dive in the pool, so it is called black dragon pool.