Water from the nearby volcanic activity comes out of the Earth very hot (sometimes, it reaches up to 96ºC) and loses just a fraction of their heat in the wooden pipes that carry it from the forest to the bath tubs. Check the temperature BEFORE getting into the tubs (some pools -but not all- have thermometers at every tub), and make sure you know how plentiful is the supply of cold water...and which one is the cold tap
At the entrance of the Liquiñe valley, lies a fancy hotel and spa of this name; it looks really good, with beautiful architecture and outdoors polls and spas, and even a dual helipad, all this in a nice surrounding and for a price: US$ 250 daily is the average ripoff. The road seems to end there, but after a bend, it continues for about 8 kilometers up to Liquiñe town, where prices are more than 20 times cheaper (although services and facilities are more basic, o'course), Don't be fooled by the fancy hotel and think that it is the only possibility to stay in this beautiful mountain backwater.
Fun Alternatives: Go to Liquiñe town and stay at some of the Rural Tourism homes, which offer great full board deals at amazingly low prices, and additionally, give you the possibility to learn from the local culture and traditions, as tourism is not their main business (they're mainly farmers instead) and tourism services are an addition. All the facilities and services are standarised by INDAP and meet the standards set by this government bureau to satisfy travellers in simple and clean comfort.
Favorite thing: Undobtedly, Liquiñe is famous after their natural thermal baths, piping directly from the hot streams in the forest to the pools through wooden 'pipelines'. If you walk a couple of minutes into the forest, you'll find the sources of the mineral water, but it's almost impossible to bathe directly in them, as water comes so hot from the Earth that must be mixed with chilled water at the pools to avoid burns. The sight of the steam in the forest at dawn, or at late afternoon is out of this world, when all the morning birds are singing and the air is fragrant with the scent of ferns and wet ground, making camping worthwhile.