Today, the success of business and communication is difficult to achieve without a quality and efficient communication plan. This paper contains a communication plan for the Cannabis Museum in Zagreb. For the theoretical part of this paper and as a secondary source of data, the literature used came from the field of communication planning and communication in achieving business goals, strategic communication and the importance of communication plan s. In addition to professional literature, scientific articles, graduate theses and relevant internet sources were also used in this paper. For the purposes of the paper, a semi structured in depth interview was conducted with the owner and founder of the Cannabis Museum, Tvrtko Kračun, as well as an analysis of the current situation using an analysis of the museum's previous communication and media content about the museum. Part of the research is also aimed at analysing public opinions and attitudes to examine the positioning of the museum and it’s communication in their consciousness using an online survey method. Based on the results obtained, a communication plan is proposed to help the Cannabis Museum in Zagreb attract new visitors as well as more successfully position themselves among older visitors.