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The Best Sea Trout Rivers In Argentina

There are plenty of incredible spots to target Sea Trout when you head out on a fishing trip to Argentina. With so much water to explore, it can be tough to know where to start—so we’ve put together a list of our favourite rivers that we think give you the best shot at landing the fish you’re after.

Below, we’ll walk you through each of these Argentinian rivers, sharing what makes them special and why they’re worth checking out. Whether it’s your first trip or you’re heading back for another round, this will give you a bit of inside knowledge before you go. We also offer a range of exclusive lodges along these rivers, giving you comfortable, well-located bases to relax after a day on the water—and putting you right where the action is.

Table of Contents

RIO GRANDE

The Rio Grande river is one of the most famous in the world for its legendary Sea Trout fishing. Located on the island of Tierra del Fuego, it arises in the Chilean part of the island and flows in a generally eastward direction, through the Argentine part and into the Argentine Sea. It flows from west to east, from the Andes to the Atlantic Ocean, through approximately 60 miles of Argentine territory. This river is widely regarded as one of the best Sea Trout rivers in the world, with anglers fishing here often and reporting multiple catches of large fish.

Lodges We Offer On This River

This magnificent river boasts many fast-flowing sections along with some captivating meandering stretches. The beautiful Rio Grande river really is one of the most picturesque areas in the world. The river is surrounded by the amazing wildlife that inhabits the area, including Peregrine falcons, white-tailed deer and the beautiful ocelot.

The majority of this river features a shingle bottom, making it ideal for wade fishing—easy underfoot and comfortable for long sessions on the water. Anglers can look forward to up to 9 hours of fishing per day, with plenty of opportunity to connect with powerful Sea Trout.

Depending on the conditions, you’ll be switching between single-handed rods on calm days and double-handed rods when the wind picks up. The action here can be truly electrifying—takes range from subtle, teasing pulls to aggressive, rod-bending strikes that will keep your heart racing. This river offers the full package for the travelling fly angler: accessible waters, varied conditions, and thrilling fishing that keeps you coming back for more.

RIO GALLEGOS

The Rio Gallegos River winds through the rugged beauty of Argentina’s Santa Cruz province, stretching approximately 112 miles from the confluence of the Rubens and Penitentes rivers all the way to the Atlantic Ocean.

Renowned for its world-class Sea Trout fishing, this river regularly produces hard-fighting fish that can tip the scales at up to 30lbs. These powerful trout are anything but easy to land—once hooked, they put up a fierce, unforgettable battle that tests your skill and patience.

Lodges We Offer On This River

Thanks to the river’s relatively shallow nature, much of the fishing is done by wading, making it accessible and enjoyable without the need for fast-sinking lines.

What makes Rio Gallegos especially exciting is its variety—plenty of different pools, channels, and runs keep anglers engaged and constantly adjusting. And once you experience the explosive take of a Gallegos Sea Trout, you’ll understand just how aggressive and bad-tempered these fish can be. Combine that with the wild, windswept scenery of Patagonia, and this river offers not just incredible fishing, but a truly memorable adventure that stays with you long after you’ve left the water.

RIO IRIGOYEN

The Rio Irigoyen is a small river situated on the East coast of Tierra del Fuego in Argentina. This river empties itself out into the sea, meaning the big Sea Trout move in fresh out of the saltwater. Due to its size, this river does not require long casting techniques. Although, technical presentations of flies can be needed to hook into one of the big fresh run Sea Trout.

The Argentina river holds lots of features and structures to fish. These areas hold plenty of fish, with the fresh run Sea Trout hiding in these features and structures before they travel up the river to spawn. The size of the fish in this river exceeds 25lbs and the power of these aggressive fresh run double-figure Sea Trout will have any angler grinning from ear to ear.

Lodges We Offer On This River

The river banks are lined with trees along the majority of the river’s length, protecting it from the strong Southern winds This really is a unique area to fish in Argentina, with the stunning scenery and beautiful water in front of you.

Contact us

Would you like to put your fly fishing skills to the test? Take a look at our sea trout fishing holidays to learn more. You can also contact us via email at info@sportquestholidays.com or call us on 01603 407596. Our experienced team will be happy to help answer any queries you have.

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