Rural tourism is a type of tourism that has evolved since ancient times but it's not so popular as other tourism types because of the lack of creation added value and employment in rural areas. In recent years, tourists' preferences are changing and the possibilities of differentiation and personalization of rural tourism are being recognized, which contributes to its development. Rural tourism in the territory of the Republic of Croatia has been recognized in recent years as one of the possibilities for the development of rural areas, and is especially developing in areas such as national parks, one of which is the Krka National Park. The problem of work can be defined as the lack of knowledge about the potential for additional tourism development in the Krka National Park and the reactions of visitors to additional facilities, but also the lack of knowledge about the potential for attracting new visitors. The aim of the paper is to analyze supply and demand in the Krka National Park with the aim of identifying additional opportunities for tourism development in the Krka National Park. The theoretical part defines the concept of tourism, shows the historical development and the situation in tourism at the global level and in Croatia. Rural tourism is one of the types of tourism that has a great posibility of development in the future and is defined in the theoretical part of the paper. The empirical part of the paper presents basic data on the Krka National Park and presents survey data conducted in the Krka National Park, with statistics on tourist arrivals and income. It can be concluded that the management of the Krka National Park is making significant efforts to improve its supply, resulting in an increase in the number of tourists and revenues, but certainly the negative impact of the excessive number of tourists is taken into account and certain measures are taken to distribute the arrival of tourists throughout the year.