Heilongtan, said to be a big attraction, is actually a small attraction, said to be a small attraction, in fact, is a big attraction. Mainly derived from a story of "filial piety and good dragon" that has been circulating for a hundred years: It is rumored that in ancient times, there was a family surnamed Yuan in the Longquan Mountains. The man died early and left a son named Yuanwa. Orphaned widowed mother depended on each other and lived a lonely life. A chance to walk the baby got a red bead, actually has the magic effect of "empty altar rice", the mother and son often use rice to help the poor, praised by the neighbors as good people. Who knows that by a greedy rich owner named Huqi, the baby swallowed the red bead, who knows that the vision is born, the baby has become a black dragon, the original red bead is the ancient times into the dragon of the dragon Dan. In order to save the mother, the river flooded the mountain, drowned the persecuting mother dozens of people, but was announced by the land to heaven, the emperor in the black dragon is because of the mother to drown dozens of evil people, but it is suppressed under the Fulong view. The black dragon was locked, but its spirit often turned into a Taoist punishment for evil and good, did many good things, deeply loved by the people, built the temple of Baoen for its praise. Later, a dragon was turned into a dragon because of the incense fire, often turned into a white man to harm the township, black dragon went all out but because the dragon was not enough to fight the dragon, fortunately the mud woman helped to remove the dragon. The Jade Emperor learned of the merit of the Black Dragon and decided to turn the Black Dragon into a golden dragon, governing the four seas. But the Black Dragon insisted on not teaching, and said: Because of my mother, I will cherish my foot forever. The Jade Emperor was deeply moved and sealed the Black Dragon as a "filial good god dragon" and stationed in Helong Beach. Since then, Helong Beach has also been renamed Black Dragon Beach.