Sole Uno (Rheinfelden)
- Location
- Rheinfelden, Switzerland
- Water type
- sodium chloride, bicarbonate
- Temperature
- 34 °C
- pH
- 7.5
Water profile
Stimulating — wakes the body and boosts circulation.
Loaded with major ions — the essential minerals (Ca, Mg).
Dense, salty water — you float without effort.
Sole Uno is a thermal spa resort in the Swiss Rhine border town of Rheinfelden, drawing on exceptionally rich chloride- and bicarbonate-saline brine water from local salt deposits — among the most mineralised thermal waters in Central Europe. The high salinity creates a powerful buoyancy effect in the pools, making bathing almost effortless, and the water is, within a long thermal tradition, associated with relaxation and the comfort it leaves on the skin. The historic twin town of Rheinfelden, straddling the Rhine between Switzerland and Germany, offers a charming cultural setting for this distinctively saline thermal experience.