The Imapct of marketing activites in the future will be one of the crucial business factors that will be essential for the sustainability of tourism and catering in rural areas in the Republic of Croatia, as well as the promotion of Croatian tourism and catering in a global environment. The motivation for choosing this topic is based on the author's interest in contributing to society and the profession in the tourism industry through this work. The problem of research is insufficient understanding of the potential of marketing activities in the promotion and sustainability of catering and tourism in rural areas of the Republic of Croatia. The subject-matter of research are marketing methods, tools and techniques. The main goal of the research is to gain a better understanding of how marketing activites can contribute to the sustainable development of catering and tourism in rural areas of the Republic of Croatia. For the achievement of the main goal, data will be collected through secondary (relevant scientific and professional literature and documentation of selected enterprises and tourist community) and primary sources of data (survey on the population of entrepreneurs in catering and tourism on a sample of 50 respondents (N = 50). The paper analyzes the existing state of rural tourism in Croatia and identifies the possibilities and guidelines for its sustainable development, focusing on the marketing activities of small entrepreneurs in the rural area. The research has shown that rural tourism in Croatia is lingering behind organized systems, such as large catering companies that revolve their marketing activities, and that the numerous and diverse natural and social resources available to the Republic of Croatia, as well as to this part of Zagreb County, are too low. The current development of rural tourism in this area until the arrival of „Kraš“ as a company and investment in eco-village was largely left to the individual entrepreneurial initiative and scarce sources of funding, so the development of such rural tourism offer was slow to develop and did not rely on different types and specific forms of tourism. Since it is an ecologically preserved space whose resources need to be preserved for future generations, the development of rural tourism necessarily implies a concept of sustainable development, and the very concept of sustainable development implies the retention of people in rural areas where they can assure their existence. This leads to the underlying hypothesis of this paper that long-term sustainable development of the society and rural tourism in the County of Zagreb can be provided by offering small family farms, small catering establishments and other forms of small entrepreneurship all integrated into the tourist offer of rural areas.