306 million yuan. According to the announcement issued by official website, Xuanen People's Government, Xuanen Gongshui River Music Fountain invested 306 million yuan. In order to create Xuanen's tourism image, enhance Xuanen's tourism taste, publicize Xuanen's tourism resources and enrich Xuanen's cultural life. Through the investigation of large-scale music fountains in China, Xuanen County designed a large-scale music fountain compatible with Xuanen's unique culture, landscape and latest music technology. This fountain is 300 meters long and 40 meters wide. It is the largest inland river fountain with the longest spring flow in China so far, creating a beautiful landscape for Xuanen tourism.