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Río Puelo: from Lago Puelo to the Reloncaví estuary

Río Puelo guide: a binational river from Argentina to the Reloncaví estuary, rafting and kayak sections, season and today’s live Puelo level.

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Where the Puelo runs

The Puelo is a binational river. It begins in Lago Puelo, inside Argentina’s Lago Puelo National Park in northwest Chubut, crosses into Chile and forms Lago Inferior. On the Chilean side it collects the outflows of several lakes, including Las Rocas and Azul, plus the Río Ventisquero. In its middle course it receives the Río Manso, its main tributary, then forms Lago Tagua Tagua and finally reaches the Pacific in the Reloncaví estuary at the village of Río Puelo, east of Puerto Montt. Its flow is fed by both rain and snowmelt.

Paddling and rafting sections

The Puelo has no single classic day run in the guidebooks; outfitters describe several very different stretches:

• Below the border: a class II river drains the lakes, then within about 6 km it squeezes into a narrow canyon described as class IV–V. Another 6 km on comes a milder class III–IV canyon called El Portón. Below that, mixed lakes and class II–III water lead toward the sea.
• Commercial rafting (class III): one operator runs about 17 km that begins with a calm float and then enters a canyon that narrows to around 10 m wide, with rapids and calm backwaters, roughly two hours of rafting. They require participants to be able to swim.
• Below Lago Tagua Tagua: a big-volume river with a couple of class II rapids and a drop called El Salto (or Gran Salto), class II+–III depending on flow, which packraft groups often portage.
• Expeditions: multi-day crossings from Argentina to the Pacific combine lakes, whitewater and sea kayaking.

Specific lengths and grades vary by source and flow, so check locally before committing.

Season and flows

Commercial trips run from October to April. Because the river is both rain- and snow-fed, expect rises after storms and during snowmelt. We don’t have published runnable flow ranges for the Puelo’s sections.

How to read our Puelo gauges

Our Puelo page shows two DGA stations on the main river: Río Puelo en la Frontera, at the border, near the top of the Chilean river, and Río Puelo antes Junta con Manso, further down above the Manso confluence. The gap between them is the water added by Chilean tributaries like the Ventisquero. Below the junction the Manso’s flow adds on top, so the river below Tagua Tagua is bigger than either reading.

Access

The lower valley is reached from Puerto Montt along the Reloncaví estuary toward Cochamó and Río Puelo; a ferry crosses Lago Tagua Tagua. The upper Chilean Puelo near the border is remote, and many visitors arrive on the lake route from Argentina.

Safety

Much of the valley is remote with limited road access. The canyons below the border are serious, and rain can raise the river quickly. Go with local knowledge or a guide.

Frequently asked questions

Can you raft the Río Puelo?

Yes. Local operators run class III rafting trips, generally between October and April.

Where can I see the Puelo water level today?

On <a href="https://chilewaterlevels.com/puelo/">chilewaterlevels.com/puelo</a>, with DGA stations at the border and above the Manso confluence.

Provisional real-time data from DGA Chile. Always scout and check conditions on the river.

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Sources: es.wikipedia.org/wiki/R%C3%ADo_Puelo · en.wikipedia.org/wiki/Puelo_River · exchile.com/adventures/patagonia-custom-kayak-trips · alsurexpediciones.cl/en/lakes-district-patagonia/rafting-puelo-river · scoutingrios.cl/patagonia-packrafting-immersion · pueliando.com/puelo-rio-abajo · Updated 2026-10-26