|Well actually only 22 hours but it took 2 hours to clear immigration from Argentina to Brazil. For day trips you luckily don't have to do immigration formalities but as we were now entering Brazil proper, we had to. It was not a bad journey. We managed to sleep well and we stopped to eat when required. It became quite clear to us how good our Spanish had become and how bad our Portuguese was, i.e. non-existent. We passed through Sao Paulo on the way which looked very industrial.