thermal spring

Scientifically, a thermal spring comes from geothermally heated groundwater rising from the Earth’s crust.

Those with high TDS - such as Vichy mineral water from thermal springs in France and Catalan - have robust mineral content that may include calcium, magnesium, potassium or sodium, among others.

Those with high TDS - such as Vichy mineral water from thermal springs in France and Catalan - have robust mineral content that may include calcium, magnesium, potassium or sodium, among others.

Those with high TDS — such as Vichy mineral water from thermal springs in France and Catalan — have robust mineral content that may include calcium, magnesium, potassium or sodium, among others.

The thermal springs are still used today for their therapeutic properties, both in the public baths near the archaeological site and at a private resort.