These are the most important spas in Sardinia with the classification of their thermal waters:

- Benetutti (SS): sulphureous, salso-bromo-iodic and radioactive water at a temperature of 40°C;
- Fordingianus (OR): sulphureous water at a temperature of 55°C;
- Sardara (CA): bicarbonate-sodium water(50-68°C);
- Tempio Pausania (SS): oligomineral water.