The Río Paraná is one of South America's most legendary fishing destinations, stretching from its origins in Brazil through Paraguay and deep into Argentina before emptying into the Río de la Plata near Buenos Aires and ultimately reaching the Atlantic Ocean. As the second largest river system on the continent, the Paraná creates a vast and extraordinarily productive wetland ecosystem that supports more than 350 identified fish species — one of the most biodiverse river systems on the planet. For sport anglers, the river is synonymous with the golden dorado, a ferociously aggressive predator that has earned a devoted global following, but the Paraná's depths also hold massive catfish, hard-fighting pacú, and a host of other remarkable species. The river's combination of dramatic wildlife, world-class fishing, and the warm hospitality of Argentine lodge culture makes it a true bucket-list destination.