Paraguay River 98% of the country's inhabitants. As such the river is considered perhaps the key geographical feature of the country with which it shares its name. Some after flowing through the middle of Paraguay, at the confluence with the Pilcomayo River and passing the Paraguayan capital city, Asunción, the river forms the border with Argentina, flowing generally south-southwesterly for another before it reaches its end, joining with the Paraná River. The Paraguay River is the second major river of the Rio de la Plata Basin, after the Paraná River. The Paraguay's drainage basin, about , covers a vast area that includes
San Pedro Department, Paraguay points. By the Jejuí River, there is a spring, the Ykua Mandyju, which has white sand beaches. In Itacurubí del Rosario, there is another spring, the Ykua Salas, very frequented by tourists. Laguna Blanca, in the district of Santa Rosa del Aguaray, is an ecologic and tourist point, where there is a lake with completely transparent water. In San Estanislao is the House of Culture and Historical Museum, which was the first Jesuit school, before becoming a barrack for the Marshall López, during the Paraguayan War. San Pedro Department, Paraguay San Pedro () is a department of Paraguay. The capital