This organization represents three spas in Chianciano: Acqua Santa, Acqua Fucoli, and Acqua Sillene, where mud baths are also available. The Terme Web site lists the varied spa treatments available. Perhaps to offset the clinical coldness of the actual treatment centers, each spa is surrounded by a large park filled with trees, flower gardens, and reflecting pools. There are facilities for such light sporting activities as tennis and boccie, and dance floors are available for musical events on summer evenings. The all-important water is served up at long counters, where the spa staff is always ready to refill your glass. Be warned: The mineral water can have a cleansing effect on your system that may come on suddenly.