With a reputation that goes back to the Roman age, the Petriolo thermal springs are immersed in nature between Val di Merse and the Maremma. The natural landscape offers numerous opportunities for long excursions, hikes and visits to natural oases, such as the nearby Nature Reserve of Basso Merse.
The thermal springs of Bagni di Petriolo gush at a temperature of 43°C along a stretch of the Farma river. A distinguishing characteristic is the presence of hydrogen sulphide: this water is rich in salts and hyperthermic, with multiple therapeutic properties.
The Bagni di Petriolo complex has therapeutic thermal pools, a modern Wellness Center and care options sanctioned by the Servizio Sanitario Nazionale di Fanghi, Bagni e Inalazioni, a national wellness and sanitary service.
People have known about the healing benefits of these springs since around 1200: through the years, numerous illustrious figures have made use of them, including members of the Medici family, high-ranking religious officials including popes, cardinals and nobles – and not only those of the Sienese territory, either. The Malatesta family of Pesaro, the Duke of Urbino Federico III of Montefeltro and the Gonzaga family of Mantua all spent time here.
This area is far from the tourist hordes and holds numerous sources of inspiration for days spent in the sunshine, amid nature or a tranquil stop at he thermal baths.
In the immediate vicinity you can explore the incredible wealth of the Val di Merse region. The legendary Abbey of San Galgano, a few kilometers from the baths, and the historic centers of Monticiano, Murlo and Civitella Paganico, are all home to historic and artistic gems of immense importance.