Mario Rotondi was an Italian professor of law and a “travelling jurist”. He ventured into the contiguous areas of private and commercial law, engaged with the areas of industrial law and comparative law. His distinguishing feature was his academic cooperation with foreign scholars in the field of comparative law. The issue of travel is a common thread throughout his various initiatives, both academic, and of legal reform. This paper aims to cast some light on his missions to South American universities, on the goals that inspired him and on the projects that animated these goals.