Fly Fishing in Argentina

Argentina, the world’s 8th largest country, encompasses more than 1 million square miles at the southern end of the South American continent (about 1/3 the size of the US). It extends from the Tropic of Capricorn all the way to windswept tundra in Tierra del Fuego, just a few hundred miles from Antarctica.

Given its prodigious size, it’s no small wonder that Argentina boasts a dazzling array of premier fly fishing destinations as vast as they are varied. From chasing golden dorado in tropical marshlands to battling trophy brown trout in Patagonia, anglers will not soon tire of the incredible diversity of fishing that only Argentina can offer. The range of environments and extraordinary quality of game fish here has justly earned Argentina a reputation as a world-class angling destination.

Yet deciding exactly when and where to fish in a country of such epic proportions is an overwhelming task for any fisherman. You’ve probably already heard that Argentina and Patagonia have great fishing, but where exactly? When? With which guides? There is rarely enough time and/or money to fish it all, so it’s important to discern your priorities and identify the “can’t miss” areas ahead of time. Imagine coming to the US for the first time having only a couple weeks to experience the best of what our country has to offer. Do you target trout, steelhead, tarpon, redfish, salmon, bass, or some combination of the above? The possibilities are simply mind-boggling, and Argentina presents a similar dilemma (if you call too many fishing options a dilemma). With all these great fishing opportunities it would be best to get some fishing tips so you are up-to-date and equipped with all the relevant information and equipment for your trip.

For the sake of brevity, the three primary fishing regions in Argentina are:

  1. North/Central Patagonia
  2. Southern Patagonia / Tierra del Fuego
  3. Northern Argentina


Patagonia is the name given to the entire southern peninsula of South America, roughly between 38 and 55 degrees south latitude. Its 380,000+ square miles are shared by the nations of Argentina and Chile, with the Andes mountain chain forming a natural boundary between the two. Patagonia’s mystique and raw beauty have irresistibly drawn explorers, mountaineers, prospectors, and naturalists alike. Today, Patagonia is one of the last fly-fishing frontiers on earth. In its more remote areas is still a sparsely-inhabited and rustic land as trackless and wild as it was a century ago, where many lakes and rivers remain relatively unknown and unexplored by fishermen.

Characterized by dramatic contrasts, Patagonia’s fishing could comprise anything from turquoise rivers cutting through temperate rainforests to tea-stained chalk streams meandering over desolate steppe, or from sight-fishing in a technical spring creek, to spey casting in a massive glacial river. And while the trout may technically be the same species as their Northern Hemispheric cousins, 100 years of uninterrupted adaptation within distinct environments has resulted in some exotic trout fishing unlike anywhere else in the world. Oversized trout chasing down equally oversized dry flies, explosive 20lb sea-run browns, or a unique run of Atlantic steelhead are just a few examples of the unparalleled fishing that Patagonia can offer.

Of Argentina’s roughly 40 million inhabitants, less than 10% live in Patagonia, although its landmass comprises roughly 30% of the country (an area the size of Montana and California combined). Popular conceptions of Patagonia therefore continue to characterize it as one of our last frontiers, often quite accurately. At the same time, parts of Patagonia are bustling with commerce and feature deluxe fishing lodges and other modern amenities to keep any tourist comfortable, if not pampered. Far from being the static “no man’s land” that some may imagine; Patagonia actually exhibits a great diversity of infrastructure & population densities. Generally speaking, both are more concentrated in northern Patagonia, and gradually become fewer and farther between as you head south. At the same time, however, the fish tend to be larger the farther south you go, mostly because of the presence of anadromous species like Steelhead and Sea Trout in the southern reaches. Patagonia is thus logically subdivided into two distinct regions: North and South.

Northern & Central Patagonia (a.k.a. the lake district): Multitudes of pristine rivers & lakes provide habitat for robust populations of brown, rainbow and brook trout. This is the most popular destination among visiting anglers.

The lakes district of Patagonia is gorgeous and also produces huge trout

Southern Patagonia & Tierra del Fuego: The world’s best runs of sea trout (i.e. anadromous brown trout), draw anglers from around the globe to brave the elements for a chance at 20 + pounders.

Sea Trout on the Rio Grande

Northern Argentina: Dorado, not to be confused with the unrelated saltwater species, occupy the Rio de la Plata basin, and are unique to this watershed. Dorado is arguably one of the best freshwater fly rod species on earth, though they remain relatively unknown to many foreign anglers.

Jumping Dorado

Leaping Dorado

When to go

People often ask us when the best time and place to fish Patagonia or Argentina is. It’s a largely impossible questions, as there is no absolute “best” time or place to go, and where you decide to concentrate your efforts will depend largely on personal preferences. The purpose of this article is thus to provide some useful information on the various angling options in order to assist with such decisions. Keep in mind, however, that the enormity of Argentina makes any generalization about it quite…well…general. Describing the entire country in a single overview is much like talking about “Fishing in the US” in one breath. Even if we devoted an entire book to this subject (which we did, by the way: it still might not be enough to capture all the nuances of this diverse landscape. Therefore, we’re not shooting for a complete review here, but rather to highlight the key aspects that will help anglers contemplating a visit get started.

Buenos Aires

Before arriving to the fishing grounds, every visitor to Argentina first passes through the capital city of Buenos Aires, a thriving metropolis of over 13 million people. Often described as having more in common with its modern European counterparts than with the rest of Latin America, Buenos Aires is among the safest and most tourist-friendly cities on the continent. Much of this stems from the heavy Spanish and Italian immigration from decades past, which has produced a vibrant and unique urban culture. With its modern amenities, rich nightlife, famously beautiful women, and steaks-the-size-of-your-head, it’s sometimes a wonder that anglers ever get beyond this initial gateway point. A couple of days here is highly recommended, as it provides visitors with the opportunity to indulge in some cosmopolitan culture before heading off to the fishing grounds farther afield.

Avenida Nueve de Julio in Buenos Aires, the widest avenue on earth

Once the hangover wears off, you’ll have to make the difficult decision of where to fish. The two most popular regions among fly fishermen are the northern and southern extremes of the country. In the far south lies Patagonia, a captivating expanse of sparsely-populated wilderness reminiscent of the American West, where wild trout, salmon, and steelhead thrive in pristine waterways pouring down from the snow-capped Andes. In the far north lies a subtropical environment drained by the enormous Rio de la Plata basin, which is home to the voracious golden dorado and myriad other exotic species.

In Part 2, we’ll talk about Northern Patagonia in further detail