Loaded with major ions — the essential minerals (Ca, Mg).
Buoyancy
Standard buoyancy
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Soft water — natural, classic buoyancy.
BicarbonatesSodiumCalcium
Terme di Acquasanta, in the mountain spa village of Acquasanta Terme set in the narrow Tronto gorge of Ascoli Piceno province in the Marche region, exploits sulfate and calcareous thermal springs known since Roman times — the name Acquasanta ('holy water') reflects the near-sacred status these springs held among local communities throughout the medieval period. The sulfate-calcic waters, naturally warm and mineral-rich from the limestone geology of the Sibillini mountains, are part of a long thermal tradition within Italian spa culture. The dramatic gorge setting, with the Tronto river cutting through limestone cliffs and the medieval fortress village perched above, creates one of the most scenically striking thermal spa environments in central Italy's often-overlooked Marche interior.
Insider tip — Terme di Acquasanta clings to a dramatic limestone gorge of the Tronto River in the Marche Apennines, where sulfate-bicarbonate springs emerge from medieval grottos first used by local shepherds. The site's thermal caves retain an ancient atmospheric quality, with naturally hot water seeping through rock formations as it has for millennia. The town straddles the border between Marche and Lazio, and the surrounding high Apennine landscape offers superb trekking in the Gran Sasso foothills. Combine your visit with the extraordinary Ascoli Piceno, less than 30 km away and one of Italy's most perfectly preserved medieval towns.