Terme di Saturnia is a hot spring resort located in the town of Saturnia, in Tuscany, Italy. The hot springs are fed by natural thermal springs that are rich in minerals and are known for their therapeutic and relaxing properties. The thermal waters at Terme di Saturnia are known for their ability to help with various health problems, such as skin conditions, respiratory problems, and muscle pains.

The resort has several large thermal pools, as well as smaller ones, that are open to the public and offer a unique experience for visitors. The water temperature at the hot springs ranges between 37 and 40 degrees Celsius, and the natural minerals in the water are said to have a rejuvenating effect on the skin. The resort also offers various spa treatments, including massage, steam rooms, saunas, and hot tubs.