The Shuangtai Estuary Wetland Nature Reserve surrounds the Red Beach and constitutes one of China's most significant wetland habitats. The Liaohe River delta's combination of reeds, mudflats, and shallow coastal waters creates ideal conditions for migratory waterbirds, and during spring (April to May) and autumn (September to October) the reserve fills with species that are rarely seen elsewhere in China.
Red-crowned cranes, black-faced spoonbills, and oriental storks all pass through in substantial numbers. The reserve also supports a resident population of greater spotted eagles and various heron and egret species year-round. Birding from the boardwalk system within the Red Beach Scenic Area covers the most accessible ground; serious birders can arrange guided access to restricted areas within the reserve for additional species. The combination of autumn colour and crane migration makes the October visit particularly worthwhile.