Are the Mulino waterfalls free?

Yes, access to the Cascate del Mulino, in Saturnia, is free : you don't need to buy a ticket or make a reservation to bathe in the natural pools. They are accessible all year round, 24/7. Be careful not to confuse them with the thermal park and spa of Saturnia, which are separate, paid establishments.

Parking, however, may be paid depending on the parking lot chosen and the period: check the signs on arrival, as rules and rates may differ from one area to another. Services near the waterfalls, such as showers, may also be paid. On site, the ground is uneven and slippery; bring water shoes and a towel, and don't necessarily expect to find changing rooms or public lockers.