Wuyuan River National Wetland Park, aka Wuyuanhe Wetland Park, is likened to a natural oxygen bar in Haikou, Hainan Province, known for its rich aquatic landscape and fresh air. At the wetland park, reed marshes sway in the wind and water birds skim the waves. Every random shot is a healing scene, and the ecology is so great that it feels like stepping into a nature class.