the site is centered about the Laguna del Iberá and is part of the macrosystem of Iberá, a catchment area of some 1.3 million hectares drained by the Río Corriente into the middle reaches of the Paraná, representative of wetland types found in Corrientes and southeastern Paraguay. Iberá Lake, at 5,500 hectares, is one of the largest and most characteristic components of the system - with an average depth of 3m, it is almost always clear with variations caused by seasonal growth of plankton. The site supports high biological diversity, including an appreciable number of endemic species