Seat 50 (semi-cama or bed), Expreso Singer, Coche 766, Puerto Iguazú to Concordia, Argentina, CDN$41.98 per person per night (12 hour overnight bus). June 5, 2008. Note: This photo was taken from the front door of the bus just as we were leaving Puerto Iguazú. This stray dog we named ‘el jefe’ (the chief) and he followed us all around the town for much of two days. We were sad to part ways.