From Calafate, we marched back up the coastline some 3000+ kilometers to the Argentine capital, Buenos Aires, located on the southern banks of the Rio de la Plata river. Actually we road a direct bus for 42 hours (two days two nights) and arrived in BA a bit worn and slimey.
We left Puerto Natales, Chile for the Argentine border crossing in the middle of nowhere on a 5 hour trip down a dirt road. The Argentine border patrol station had a pingpong table set up in the room adjacent to where we had to get the entrance stamp, so naturally we wandered over and struck up a game, thinking the border guards might want to jump in with us.