San Casciano dei Bagni a small town situated in Valdichiana is known since ever for its thermal water. San Casciano dei Bagni is a town of 1,708 inhabitants situated in Valdichiana, in the province of Siena. Its history is bound to the presence of thermal waters, which attracted a lot of people during past centuries.

In the 19th century, spa in San Casciano went into decline, as they were not able to adapt to the European standards, but, in the 20th century, the revitalization was possible thanks to a luxurious spa complex.