In Sasso Pisano, a small hamlet of the Pisan Maremma in the municipality of Montecatini Val di Cecina, surrounded by splendid hills in all seasons, you can swim in the warm and healthy thermal waters in two places: the two natural pools on the river, near the Remains of the Etruscan and Roman baths and at the sinks of the cemetery, of which a splendid, recently rearranged (water at 36 °).