This paper aims to incorporate, for the first time, involvement as an antecedent of emotions, as well as,satisfaction as outcomes in the S–O–R model. The proposed model was tested into the context of healthand wellness tourism, in particularly hotel thermal Spas. Therefore a questionnaire was built based onliterature review and information provided by the managers of such facilities. The survey was conductedusing a self-administrated questionnaire distributed to individuals who received Spa service experiencein Portugal. Data was treated using the PLS approach. The results revealed that atmospheric cues andinvolvement are important antecedents of relaxation and pleasure. The feeling of relaxation is moreimportant to lead to satisfaction than pleasure and pleasure does not impact directly and significantlyon word-of-mouth. Relaxation is the core emotion in Spa context. This article also provides importantmanagerial implications, limitations, and suggestions for future research.