31/10/2026
10 Stunning Hot Springs in Tuscany You Shouldn't Miss
Some of these destinations are completely free, while others offer paid thermal pools and spa experiences. Here are ten wonderful places worth discovering.
1. Cascate del Mulino, Saturnia
Perhaps the most famous natural hot springs in Tuscany, Cascate del Mulino is a spectacular series of limestone terraces where warm, mineral-rich water flows into beautiful natural pools. Located in the Maremma countryside, near Saturnia, the water emerges from the thermal spring at approximately 37.5°C.
The waterfalls are free to visit throughout the year, making them one of Tuscany's most extraordinary natural attractions. Arriving early is particularly rewarding if you want to experience the pools before the busiest hours.
2. Bagni San Filippo – Fosso Bianco
Hidden in the forests near Monte Amiata, Bagni San Filippo is famous for its extraordinary white limestone formations created by mineral-rich thermal water.
The most spectacular formation is known as the Balena Bianca, or White Whale, a massive white calcium deposit surrounded by woodland. Visitors can enjoy permitted natural pools along the Fosso Bianco stream, but climbing, touching or bathing beside the protected White Whale formation is prohibited.
3. Bagni di Petriolo
Located between Siena and Grosseto, Bagni di Petriolo is one of Tuscany's most fascinating historic thermal destinations. Its naturally hot, sulphurous water emerges at approximately 43°C and feeds small pools along the banks of the Farma River.
The setting is particularly beautiful because the springs are surrounded by forests and the remains of medieval fortifications. Natural bathing areas can be accessed without paying for a spa, while nearby establishments offer additional facilities.
4. Bagno Vignoni
In the heart of the UNESCO-listed Val d'Orcia, Bagno Vignoni is a remarkable medieval village built around an enormous rectangular thermal pool instead of a traditional town square.
The hot water has been appreciated since ancient times, and the atmosphere becomes especially beautiful when steam rises above the historic stone buildings.
Swimming in the famous central pool is not permitted, but visitors can enjoy thermal bathing at local spa hotels and explore the nearby Parco dei Mulini, where thermal water once powered historic mills.
5. Terme San Giovanni, Rapolano
Surrounded by the beautiful Crete Senesi countryside, Terme San Giovanni offers panoramic thermal pools overlooking rolling hills and characteristic Tuscan landscapes.
The complex includes indoor and outdoor pools with naturally heated mineral water, relaxation areas and wellness facilities. It's a wonderful destination for visitors who prefer a comfortable spa experience with beautiful countryside views rather than bathing in wild natural springs.
Admission is paid, and advance booking is worth considering during weekends and holidays.
6. Terme di Sassetta – La Cerreta
Hidden among chestnut trees, ancient oaks and Mediterranean woodland, the Terme di Sassetta offer one of Tuscany's most peaceful thermal experiences.
Located within the La Cerreta estate, the spa features stone-lined thermal pools inspired by ancient Etruscan and Roman bathing traditions. The mineral-rich water emerges naturally at approximately 51°C before being supplied to pools at comfortable bathing temperatures.
The surrounding forest creates a wonderfully secluded atmosphere, making this paid thermal retreat especially appealing for nature lovers.
7. Calidario, Venturina Terme
Near Tuscany's Etruscan Coast, Calidario is home to a remarkable natural thermal lake surrounded by greenery and historic stone architecture.
Its mineral-rich waters emerge naturally at approximately 36°C, creating a beautiful open-air bathing environment. Unlike wild thermal springs, Calidario is a managed spa complex with changing rooms, relaxation facilities and wellness experiences.
It's particularly convenient for travellers exploring the coastal areas around Campiglia Marittima and the Val di Cornia.
8. Piscine Termali Theia, Chianciano Terme
Chianciano has a long tradition of thermal bathing, and the Piscine Termali Theia offer a modern way to enjoy its natural mineral waters.
Fed by the historic Sillene spring, the complex includes indoor and outdoor thermal pools, hydromassage areas and dedicated wellness facilities. With water temperatures generally between 33°C and 36°C, it's a relaxing destination in the beautiful countryside of southern Tuscany.
The complex also has family-friendly facilities, making it a practical option for visitors travelling with children.
9. Terme di Sorano
Located in southern Tuscany near the spectacular tuff-stone villages of Sorano and Pitigliano, Terme di Sorano is surrounded by peaceful Maremma countryside.
Its thermal complex features naturally heated pools and the historic Bagno dei Frati, a small stone bathing pool hidden among trees that was used by local friars centuries ago.
The combination of warm water, beautiful woodland and nearby medieval villages makes Sorano particularly appealing for a relaxing countryside getaway. Access to the thermal facilities is paid.
10. Terme di Casciana
Located in the hills of the province of Pisa, Casciana Terme has a centuries-old reputation for its naturally warm mineral waters.
The town's famous Acqua Mathelda emerges at approximately 35.7°C and supplies the local thermal establishments, including an outdoor pool surrounded by greenery.
It's a lovely destination for travellers who want to combine a relaxing spa visit with the quieter countryside of western Tuscany. The thermal pools are managed facilities with paid admission.
A few things worth knowing before visiting
Not all thermal destinations in Tuscany offer the same experience. Cascate del Mulino and the permitted natural bathing areas at Bagni San Filippo and Petriolo are ideal for visitors seeking outdoor pools in a natural setting. Other places, including Rapolano, Sassetta, Chianciano, Sorano, Casciana and Calidario, are managed establishments that charge admission.
Bagno Vignoni is particularly beautiful for its historic atmosphere, but its famous central pool is strictly for admiring rather than swimming.
If you're planning to visit natural springs, bring suitable footwear, a towel and a bag for your belongings, as some locations have rocky paths and limited facilities. Always respect local bathing restrictions and help preserve the delicate limestone formations.
