Terme di Saturnia: Tuscany's Free Hot Springs
Saturnia is 35 minutes from Sorano. The thermal waterfall pools, the Cascate del Mulino, cost nothing to enter and are open 24 hours a day. What to know before you go.
Saturnia is about 90 kilometres south of Siena, in the Maremma. It is not difficult to find. What surprises most visitors is that the most memorable thing about it, the thermal waterfall pools, costs nothing to enter.
Here is what you need to know before you go.
Two experiences, not one
Most people search for "Terme di Saturnia" and arrive expecting one thing. There are actually two distinct experiences, and they are not the same.
The Cascate del Mulino are natural thermal pools formed where the Gorello stream cascades over a series of travertine rock formations. The water comes out of the ground at a constant 37.5°C year-round. Entry is free. The site is open 24 hours a day, every day, including in winter. There are no sunbeds, no umbrellas, and no staff on the water. Just the pools, the steam, and the stone.
Terme di Saturnia Spa Resort is a separate, private establishment a short distance away. It has thermal pools, spa treatments, and hotel accommodation. Entry is paid, and it operates more like a luxury wellness resort than a wild thermal experience. It opens Monday to Sunday, 9:30am to 7:00pm. Check the official website (termedisaturnia.it) for current day pass prices before you go.
Most visitors come for the Cascate del Mulino. That is what this post is about.
What it costs
The water is free. Parking is not.
As of 2024, the car park at the Cascate del Mulino charges €2.50 per hour during the day. Parking is free from 8pm to 8am. If you arrive early in the morning, you may pay nothing.
On-site facilities include free changing rooms, showers (€1 for two minutes), and lockers (€5 deposit plus €5 minimum spend at the restaurant). There is a snack bar and café. Bring cash for all of this.
When to go
Saturnia is one of the most-visited natural sites in Tuscany. In summer, the pools can be crowded enough to make the experience less pleasant. The strategies that work:
Time of day: Arrive before 7am. At sunrise, especially in the shoulder seasons, you may have the pools almost to yourself. The steam over the warm water in cool morning air is worth the early alarm.
Season: April to May and September to October are the best months. The crowds thin out significantly, the light is better, and the water temperature stays constant regardless.
Day of week: Weekdays are reliably quieter than weekends. Saturday in August is the scenario to avoid.
What to bring
The bottom of the pools is rocky. Water shoes are not optional. They make the difference between comfortable and painful. Bring them.
Other things to pack: swimsuit, towel, sunscreen, a hat, and enough water for your visit. Leave any jewellery at home: the sulphur in the water tarnishes metal quickly.
Keep your car keys in a sealed plastic bag. The pools are full of people who learned this lesson after the fact.
Getting there from Sorano
Sorano is 35 minutes from the Cascate del Mulino by car. There is no public transport connection. A car is essential for this visit, as it is for most of the Maremma. Here is how to get to Sorano.
The drive takes you through open agricultural land and scattered hill villages. It is, in itself, a reasonable part of the day.
While you are there
Saturnia village is a few minutes from the pools and worth a short walk. Montemerano, another small hill village a few kilometres away, has good restaurants if you want to eat after your visit. L'Oste in Piazza in Montemerano is frequently cited for its grilled meats and local wines.
One more thing
The pools are open at night. If you have a car and a clear sky, coming back after dark for an hour in 37°C water under stars is not something that happens in many places.
Sorano is 35 minutes from Saturnia by car. It is also one of the most unusual places to sleep in southern Tuscany: a tuff-stone village that most visitors to the area never find.
