The Puyehue is part of the larger Cordon Caulle and is located near the large pass road that connects the Chilean city of Osorno with the Argentinean Villa La Angostura and Bariloche (Cardenal Samoré border crossing). Coming from the Chilean side, turn left onto the unpaved road to Fundo el Caulle a few kilometers before the Chilean border control and just before a campsite. If you are coming from Argentina, bear in mind that you are only allowed to take limited amounts of food across the border into Chile. If you want to spend the night at Puyehue, it may therefore be worth making a detour to Entre Rios to the nearest Chilean supermarket.
The Fundo el Caulle is a kind of estancia with a restaurant and various tourist activities (hiking, horse riding, etc.). The owners own the land on which the road to Puyehue is located and take care of its maintenance and the hut. As you are not allowed to walk through private property in this country, you have to pay an entrance fee of 10,000 Chilean pesos (approx. €13) at the restaurant. If there is no one in the restaurant, you can ring the bell at the private house behind it. If you contact the Fundo el Caulle in advance, it is possible to organize horses to take you to the hut, depending on the snow conditions.From the Fundo el Caulle, follow the clearly visible, often quite muddy path up through the forest to a small refugio (hut) at the edge of the forest. Up to here, you have to cover around 1000 meters in altitude, most of which are rather steep. Most of it is snow-free. Even if there is snow in the forest, it is only worth putting on skis in the lighter forest shortly before the end.