Lago Yehuin

Boat Ramps: 0
Access Points: 0
Species: 1

Lago Yehuin is a scenic lake nestled in the heart of Isla Grande, Tierra del Fuego, Argentina — one of the world's most remote and rewarding fly fishing destinations. Situated near the town of Tolhuin and part of the greater Lago Fagnano (Kami) basin, Yehuin sits within a landscape shaped by ancient glacial forces, surrounded by lenga beech forests and the raw, windswept terrain that defines the southern tip of South America. The lake is part of a rich network of interconnected waters that includes Lago Yakush, Lago Chepelmut, and numerous rivers and bays, all of which together form one of the most productive trout fisheries in the Southern Hemisphere. The sport fishing season runs from November through mid-April to May, aligning with the austral summer and offering anglers a window into some of the finest cold-water trout fishing available anywhere on the planet.

Tierra Del Fuego licenses and regulations3 to check before you go

Species & education

Learn what type of fish are at Lago Yehuin and what's needed to catch them.

Find which waters have the species you want to catch

Puye

Galaxias maculatus

Fishing spots, boat ramps & amenities

Learn how to get on Lago Yehuin. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.

Lago Yehuin is part of the broader Lago Fagnano basin, and the network of waters in this area — including the nearby Torito and De Los Renos bays, and the Milna, Tuerto, and Valdéz rivers — all offer productive fishing. Within the Yehuin area, the lake's shoreline margins, inlet streams, and areas where tributaries enter the lake are particularly productive zones, as trout congregate near these features to feed and stage throughout the season.

Know where you can legally fish on Lago Yehuin

See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.

Tierra Del Fuego licenses and regulations

Tierra del Fuego Boating Regulations

Boating in Argentina is regulated nationally by the Prefectura Naval Argentina, not by the province - covering recreational-vessel registration, the boat-operator licence (habilitacion nautica), and navigation safety.

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Tierra del Fuego Fishing License

Official recreational-fishing hub of Tierra del Fuego's Ministerio de Produccion y Ambiente, with permit info, fees, authorized sectors, and the SAPTDF/SIPED digital permit system. TdF issues its OWN provincial permit and is NOT covered by the unified Patagonian permit.

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Tierra del Fuego Fishing Regulations

The official recreational fishing reglamento for Tierra del Fuego: season dates, permitted methods (spinning and fly only), per-water rules, and mandatory catch-and-release later in the season.

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Take Lago Yehuin with you

The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.

Use the map without signal
Download the map around Lago Yehuin to use it offline when coverage drops.
Log your catches here
Keep a private fishing journal for Lago Yehuin to find where and when fish are biting for you.
HD depth charts from Garmin
Find drop offs, ledges, channels, points and shallow flats with Garmin depth charts in the app.