This study was conducted at Haaga-Helia university of applied science between October 2021 to March 2022, focused on Helsinki, the capital city of Finland, and used Harvard referencing style.

In this thesis, the author assumed that the modern Hammam functioning—Spa Hammam is a miniature replica of the Spa concept, and its details could apply to Spa. The study sought to understand authenticity as a phenomenon and its dimensions in Spa and learn about experiences using the five senses in such a setting. Furthermore, this study strived to uncover perspectives on authenticity dimensions and the experience of the five senses in the Spa Hammam environment.

Prior, the author developed a literature review through comprehensive desk research on the traditional Hammam functioning in ancient civilisations, Persian, Ottoman, and Moroccan. In addition, she exhibited Hammam's evolution, its architectural character and the unconventional myths behind the traditional Hammam. Additionally, the literature study showed two types of authenticity: constructive and existential in Spa settings.

Moreover, the author decided on quantitative research and designed a self-completed questionnaire survey based on the literature review. The result affirmed the two authenticity dimensions, constructive and existential. Then too, it indicated the significant usage of the five senses. Either establish a unique connection to surpass the guest's expectations or ruin a link with them. Likewise, the result revealed the Spa Hammam architecture structure as a critical concept and its impact on the guest experience.

In conclusion, Spa Hammam can be welcomed in Helsinki by ensuring an authentic product service for the guests encountered through experience using the five senses. These elements are crucial for the concept. Nevertheless, involving a larger sample group and a completed financial feasibility study to validate the profitability of this business idea may be a future research study.