The uniqueness and originality of our Thermal Centre derives from the hot bromidic iodic salt water that runs in the Euganean subsoil.
It originates in the foothills of the Alps at a height of 1,000–1,500 metres and seeps down to a depth of 2,500–3,000 metres, becoming enriched with mineral salts and picking up heat along the way. The water's 70-100 km journey from the Alpine Foothills to the Euganean Spa basin takes about 25 years. Here in the basin, because of the particular subsoil structural conditions, it returns rapidly to the surface with its high temperature (70°C – 87°C) and salts unaffected.
 
At Abano's hot springs this water's main use is in the maturation, conservation, and rejuvenation of the thermal mud.
 
The mud in our spas, rich in trace elements, is gathered from the bottom of a small volcanic lake in the Euganean Hills and then cleansed of impurities and matured in the thermal water. This enriched mud deeply detoxifies, cools, decongests and oxygenates blood and tissues, resulting in increased energy and vitality.          
The water's chemical composition and temperature play an important role in this therapeutic action. The maturation process helps to develop the particular microflora, vegetal (algae) and animals (micro organisms), contained in our unique pug.
During this process the pug is abundantly colonized by numerous micro algae (Cyanophyta or Cianoficae and Bacillariophyta or Diatomacae) found in the ecosystem of the Euganean Thermal Basin; they give the mud its special chemical-physical and therapeutic properties.
 
Our mud is incubated for at least two months in a continuous thermal water flow. Among the key micro organisms colonizing the mud are cyanobacteria, and, amongst these, one of the most abundant and important belongs to the Phormidium strain. Isolated for the first time in our mud and extensively monitored, it produces a high anti-inflammatory action, unique for its absence of collateral effects, even after repeated treatments.