Sole Uno is the name of the spa in Rheinfelden, Switzerland, near Basel. It is very easy to get there from Alsace. The thermal water comes directly from the Rheinfleden-Riburg…
…the Black Forest (Germany) Spa of the hotel Traube Tonbach in the Black Forest (Germany) Saarland Thermes, oriental thermal baths in Saarland (Germany) Sole Uno in Rheinfelden (near Basel, Switzerland)…