Home to Argentina’s best-kept Jesuit-mission ruins, the village of San Ignacio is an essential stopover on the overland route to or from Iguazú’s famous falls . It also enjoys literary celebrity as the home of writer Horacio Quiroga , who produced some of his finest fiction in a residence that still survives here.
San Ignacio (pop. about 7,000) is 56 kilometers northeast of Posadas via RN 12. From the highway junction, Avenida Sarmiento leads to Calle Rivadavia, which leads six blocks north to the ruins.
Buses arrive and leave from the new Terminal de Ómnibus across the highway from the tourist office. The main destinations are Posadas  (1 hour, US$3) and Puerto Iguazú  (3 hours, US$9). Milk-run buses are considerably slower than express services.