Coto de Doñana is a vast natural park located in southern Spain, primarily in the provinces of Huelva, Sevilla, and Cádiz. It is known for its diverse ecosystems, including marshes, dunes, and forests, which provide habitat for numerous species of flora and fauna. The park is particularly famous for its bird populations, making it a popular destination for birdwatchers. Established as a national park in 1969, Coto de Doñana is a UNESCO World Heritage Site. It plays a crucial role in the conservation of endangered species, such as the Iberian lynx and the Spanish imperial eagle. The park also supports various research and educational initiatives focused on environmental protection.