Throughout history, tourism has developed in accordance with social progress, where industrialization, urbanization and technological progress played an important role. Tourism is a social, cultural, and economic phenomenon that involves the movement of people to countries or places outside their usual environment for personal or business reasons. One of the first definitions of ecotourism was created in 1987, and the Mexican architect Caballos-Lascaura defined ecotourism as: "Traveling to relatively untouched and unpolluted nature with specific goals such as learning, enjoying and admiring the environment, plants and animals as well as the past and the existing cultural heritage of a certain area." A participant in ecotourism, i.e., an ecotourist, is most often a person in search of places that have not been transformed by man or only partially transformed, and is rewarded with the feeling of experiencing a unique and unrepeatable situation through the protection, assistance and preservation of the ecological integrity of a areas. Tourism has become one of the factors that have the greatest impact on the quality of space and is often the most environmentally sensitive. The positive impacts of tourism development on the environment refer to forms of tourism that are developed precisely in accordance with the protection and preservation of natural resources. Tourism also has a negative impact on natural resources, which are damaged and destroyed by the expansion of tourism. Ecological areas refer to sensitive areas that require a high level of protection in which functional use of the area is not allowed, and functional areas represent areas in which recreational use of the area is allowed up to a certain level (depending on the area in question). NP Brijuni is certainly specific in many ways; from the layered and rich history and development of the islands to the ecological interactions that still take place in these areas today. Brijuni National Park is visited by various types of guests, from those who spend only a few hours there, hotel guests who stay for a few days, and boaters who come with their boats. Advertising in the country and abroad, sending newsletters and sponsored reports are an important part of publicity. Great importance is attached to the printing of promotional materials (leaflets, prospectuses, brochures, books).