The aim of this final thesis is to elaborate in detail selective forms of tourism and to determine the importance of marketing in tourism. Given the ever-increasing presence of advanced technology, information regarding any forms of selective tourism is rapidly spreading, and proportionally, the desire to travel is increasing. The tourist offer is changing every day, as new forms of tourism, new destinations and new points of interest appear. Tourists, on the other hand, are becoming more and more demanding in their travel planning, but at the same time more diverse. The paper will deal with marketing mix instruments that are significant for tourism and marketing approaches for certain forms of selective tourism. In the practical part of the work, the Municipality of Erdut will be treated as an example of how marketing aspects affect selective forms of tourism in the surrounding area. The town of Erdut hides many beautiful sights, which unfortunately are still not well presented through tourist boards. As the main attraction, Erdut has an educational path, which is also called the stairs of health, there is also a beautiful watchtower from which there is an intimate view of the Danube river. It is a peaceful and tranquil place that was first mentioned around the fifteenth century. It is full of traditions that date back to ancient times and is certainly a desirable attraction for domestic and foreign tourists who find themselves or who want to be reminded of a part of Croatia that is a little less represented than the Adriatic Sea and its coast. The tower hosts numerous events throughout the year, including the commemoration of the anniversary of the Storm, a culinary competition, various fairs and more. They will talk about the most developed forms of tourism such as wine, rural and religious tourism, as well as the possibilities of improving and further developing tourism in the future.