Meg K.
Yelp
Make sure you go to the NATURAL SPA and not the water park! I feel like a lot of the negative reviews are from people who went to the wrong place. In addition to the thermal baths, the spa also offers massage. It was lovely and super inexpensive. The windows were open and you could hear the water and the birds outside.
The natural hot springs are legit one of the most gorgeous places I have ever seen in the world. A one hour drive from Mendoza, they're not too inaccessible, but it feels like you are a world away.
The thermal spas are nestled high in the mountains, right along the river. There are baths of every temperature, some indoor, some outdoor, and natural mud you can apply to your face and body to detox. Honestly, the description doesn't even do it justice - you've just got to see the photos. Crystal blue, green, water, bright blue sky, and the red-brown mountains.... flowers, palm trees, alamo trees, aloe plants... absolutely not to be missed if you are in Mendoza!