In this final paper, the focus will be on tourism in Croatia. The first part of the paper will present the importance and purpose of business planning, while the second part of the paper will focus on Croatian tourism in general. The paper will cover summer and winter tourism as well as tourism in the city of Zagreb, which is mentioned as a good example of the development of continental tourism. Furthermore, some examples of the rural tourism in Croatia will also be presented. Through the two mentioned seasons, together with examples and reviews on the rural tourism sector, a general overview of the success and development of tourism in Croatia is given. Also, a brief description of the history of tourism in the rural areas as well as the possibilities and assumptions of the development of rural tourism in Croatia is given. Furthermore, the island of Krk was selected as an example of a sustainable business plan in the latter part of the work. The island of Krk is one of the most developed islands in the Republic of Croatia with regard to the development of tourist offers. Based on the island Krk and its tourist offers, we will present what to do and how to do in order to achieve the business goals, which will result in an increase in the number of guests in the destination and the extension of the tourist season. Through the business plan of the island of Krk, its supply and demand, prices, clients, competition, vision and mission of the island of Krk are being presented. The plan ends with a brief review of the topics discussed, while the summery of the paper gives a clear conclusion of all the presented topics.