Parque Nacional Río Pilcomayo, some 160 km north of Formosa on the border with Paraguay, was created in 1951 to protect 48,000 hectares of wet Chaco. It is listed in the Ramsar Convention, an international treaty for the conservation and sustainable utilisation of wetland ecosystems. South of the Río Pilcomayo, much of the park’s low-lying land is prone to flooding during the rainy season and droughts in the dry season. However, it’s not made up purely of wet lands; it also has expanses of savannah grasslands with clusters of quebracho tree, tall white palms and riverside sub-tropical forest. Among its fauna are monkeys, anteaters, capybaras, alligators and the rare maned wolf as well as a plethora of birds such as woodpeckers, storks, swans, herons and parrots.