The subject of this paper is the processing of a marketing plan as a tool for the development of a tourist destination. Through the theory and example of practice, the aim of the paper is to point out the importance of marketing planning in tourism and to expand knowledge on the process of marketing planning and the process of drafting a marketing plan. A Marketing Plan is a written document or draft on which marketing activities in a company or organization are conducted and monitored. The plan contains elaborate strategies and marketing programs to achieve the goals in a particular market so it is the main instrument for directing and coordinating marketing activities. The marketing plan shows a detailed internal and external environment analysis to gain a realistic insight into the position of the product on the market, after which the goals that are to be achieved are set, strategies and tactics, or ways to achieve the desired goals. Business forecasts are also being made to gain insight into the potential outcome of marketing actions and financial forecasts for insight into the financial viability of the product. In order for the plan to be successfully implemented, a plan mechanism mechanism must be established. The work consists of six chapters. At the beginning of the paper, goals and purpose of this work and the choice of topic are mentioned, and the importance of marketing planning is emphasized. Subsequently, the previous theoretical background is mentioned and then, in the third chapter of the work the term marketing plan is defined, after which the detailed parts of which the marketing plan consists and the problems that may be encountered when developing the plan are defined. We also get acquainted with the concept of marketing in tourism and the specifics of marketing in tourism. The fourth part of the chapter analyzes the example of a marketing plan, "Operational Marketing Plan for the City of Zagreb for the 2011-2016 Spacing", to gain insight into the marketing plan from practice, followed by discussion and at the very end of the work conclusion.