Whew! Just in time, emZwerg and I found an Earthcache (beautiful place, you should definitely come if you're in the area), so we won't be leaving South America without having found a cache!
In the mean time, emZwerg has been to ruins young and old, to the Paraguay and Parana rivers and looked across them at Argentina, to the famed Lago Azul de Yparacai of song, all over the capital city of Asuncion, and to the Jesuit Missions down south where again, many colons settled from Germany and still speak the language everyday.
Tired but happy, he's coming back to the US to continue his adventures there!