Evidently, the spas in Montecatini Terme are a series of places, not just one building or location. I was confused until I figured that out. I went there on a day trip from Lucca, which I suggest doing because it was quite convenient. From the train station, the spas are just a few blocks walk. I found the town itself to be a bit shabby and dated, so was glad I wasn't actually staying there. I went to the Terme Redi Spa, which is where the thermal swimming pool is. It is 12 euro for one hour. That is all the longer you are permitted to stay in due to the water temperature. The water is 32-33 degrees celcius or about 90 degrees F. It is warm but not hot. Also salty. The pool is not large but is very pleasant. The public hours for swimming are very definite so you need to call or check the schedule before you go.
A few blocks away is the Excelsior Spa. This is a very beautiful historic building and the area is quite lovely. You can book various treatments here. I had a massage and a pedicure and was very pleased with the service. It was nice to have beautifully painted wooden cupboards in the dressing area rather than a roomful of metal lockers! After the treatment I was invited to relax in the Solarium with a cup of hot tea before I got dressed. The view is of a nice park below and was very enjoyable.
I visited during a very low season so did not experience the outdoor music everyone else wrote about. But it was a nice place to spend the day and there are a lot of shops and cafes to visit after your spa treatments.
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