Croatia is rich in numerous natural healing agents that form the basis of a rich tradition in health tourism in our country. They represent a great capital as well as big potential for further development of health tourism in all its forms – medical, health tourism and wellness. This paper provides insight into the conceptual definition and characteristics of health tourism in Croatia, and through the analysis of its supply and demand provides an overall picture of the situation in Croatia for all three segments individually. A more detailed analysis of the impact of health tourism in Ivanić Grad has been shown, with the leading role played by the Naftalan Special Hospital, which emerged as a result of ten years of detailed research of the source of naphthalene medicinal oil. This hospital is unique in Europe because it is located at the mentioned oil source, and the other source in the world is located in Azerbaijan. SWOT analysis of health tourism in Croatia and then of the Naftalan Special Hospital presented the advantages and disadvantages, as well as the opportunities and threats they face. In order to better position the Naftalan Special Hospital in the future, it is necessary to complete the ongoing investment cycle, then continue to work on improving the quality of service and investing more in promotional activities both in Croatia and worldwide.