Introduction to the seaside playground: Yangzonghai seaside playground is the first emerging tourist attraction open to the outside world in the first provincial tourist resort in Yunnan. The seaside playground is a water-based amusement park. The large-scale comprehensive amusement area covers an area of 140,000 square meters and has more than 40 water, land and air amusement projects. The water surface is 11.5 square kilometers and the lawn area is 60,000 square meters. Since its completion and opening in 1992, it has received more than 1 million domestic and foreign guests, invested more than 60 million yuan, and built more than 40 water, land and air recreation projects, including hydroplanes, water parachuting, water trampolines, jet skis, Sailing boats are unique to the three southwestern provinces. All lawns in the venue are open to tourists, allowing them to rest freely. It is currently the largest comprehensive tourist attraction in China that relies on plateau freshwater lakes and has the most novel projects. Various large-scale cultural, sports and entertainment activities are held every year, among which the "Folk Song Festival", "Water Splashing Festival" and "Dragon Boat Race" attract tens of thousands of participants and have a wide impact.