PATAGONIA, ARGENTINA. The Maraton Patagones-Viedma International Open Water Swim is a FINA-sanctioned 10K professional marathon swim on February 4th 2012. Part of the FINA 10km Marathon Swimming World Cup circuit, it is supported by the Confederacion Argentina de Deportes Acuaticos and is one of the favorite stops on the professional marathon swimming circuit for many […]