Termas de Puyehue
"I got into the water at four in the afternoon and the light changed twice before I got out."
Hot springs steaming inside a national park of ancient forest and volcanic craters, where the water arrives straight from the mountain and never quite cools.
The drive into Parque Nacional Puyehue already tells you what to expect: the road narrows, the forest thickens into that dense, dripping Valdivian rainforest that exists almost nowhere else on the planet, and the air starts to smell faintly of sulfur well before you see any steam. Termas de Puyehue has been drawing bathers since the nineteenth century, and the current complex, rebuilt more than once after the volcano behind it acted up, has settled into a comfortable, slightly old-fashioned grandeur — stone pools, wooden decking, forest pressing right up against the edges of the water.
I went in on a grey, drizzling afternoon, which turned out to be the correct way to experience it. Rain on your face while the rest of you sits in water hot enough to fog your glasses is one of those simple physical pleasures that no amount of description quite prepares you for. There’s an outdoor pool built right against the treeline where I sat until my fingers pruned, watching mist drift between the coigües, a woodpecker occasionally announcing itself somewhere in the canopy. The indoor pools are hotter and more mineral-heavy; the outdoor ones let you actually look at where you are, which I preferred.
The springs sit within a national park that has plenty to offer beyond the water, if you can pull yourself out of it. The Salto del Indio waterfall trail runs through the same rainforest a short drive away, and the road continues up to Antillanca, a small ski area on the slopes of Volcán Casablanca with views back down over Lago Puyehue on a clear day. I did the short version — springs, waterfall, a slow lunch — and left feeling like I’d used the day exactly as well as it deserved.
When to go: The hot springs work year-round, but the contrast is best in autumn or winter — May through August — when the cold air outside makes the water feel even better. Combine with a day trip to Antillanca if there’s snow.