Rio Manso Lodge sits within Argentina’s oldest and largest national park, on the forested shore of Lago Hess, with views across the water toward Monte Tronador on clear days. The lodge offers comfortable rooms with private baths, a river-stone fireplace lounge, and a relaxed, intimate atmosphere — despite its remote feel, it’s less than two hours from the Bariloche airport, making it one of the easiest true wilderness lodges in Patagonia to reach.

The fishing here is built around a tight drainage of glacial lakes — Hess, Fonck, and Roca among the most productive — connected by short, wadeable outlet rivers, all within twenty minutes of the lodge. Waters run exceptionally clear, often with visibility past thirty feet, and hold strong populations of wild brown, rainbow, and brook trout. Much of the fishing is done from skiffs working creek mouths, bays, and weedbeds, with wading opportunities where the rivers narrow. Because hatches on the Manso system tend to be sporadic, streamers and sinking lines account for many of the largest fish. The season runs November through April, with early summer bringing higher water and stronger dry-fly activity building through December and January.

Non-anglers have plenty to fill their days with, from hiking trails through native forest to simply taking in the park’s scenery from the lodge itself.