Guevara and Alberto arrive in San Martín on January 31, 1952. Guevara describes the location, saying "San Martín lies on the yellow-green slopes that melt into the blue depths of Lake Lacar"(44).
This stop is significant because Guevara has a very crucial revelation in this location. As said in the text, "Although often on our travels we longed to stay in the formidable places we visited, only the Amazon jungle called out to that sedentary part of ourselves as strongly as did this place. I now know, by an almost fatalistic conformity with the facts, that my destiny is to travel, or perhaps it's better to say that traveling is our destiny, because Alberto feels the same"(45)
http://upload.wikimedia.org/wikipedia/commons/5/51/SAN_MARTIN_DE_LOS_ANDES_LACAR.JPG