Suio Terme
- Location
- Suio, Lazio, Italy
- Water type
- bicarbonate, sulfurous, carbonated
- Temperature
- 36 °C
- pH
- 6.5
Water profile
Soothing — neither hot nor cold, perfect balance.
Rich in active gases or metals — a strong mineral character.
Mineralised water — eases movement and joints.
Suio Terme is an ancient thermal locality in the hamlet of Suio within the municipality of Castelforte in the province of Latina, southern Lazio, Italy, where the Garigliano River — the ancient Liris — flows through a valley between the Aurunci and Mainarde mountains and where bicarbonated sulfurous carbonated springs have been channeled for therapeutic bathing since Roman times at this strategic point between Lazio and Campania. The thermal waters of Suio emerge from geological contact zones in the limestone and dolomite formations of the southern Apennines, a hydrothermal system that has provided consistent spring flow since antiquity and supports a range of balneotherapy applications rooted in the classical Italian terme tradition. Suio Terme's ancient thermal heritage, its riverside setting on the historic Garigliano, and its sulfurous bicarbonated waters combine to make it one of the lesser-known but historically significant spa localities of central-southern Italy.