Hiking is a segment of active tourism, and it is the most common and one of the most popular ways to travel. This paper analyzes the situation in the segment of adventurism, ie hiking and trekking tourism in the Split-Dalmatia County, in order to reduce uncertainty in the process of opening a specialized travel agency. The fundamental goals of this paper are to objectively simulate the process of opening a travel agency specializing in hiking and trekking tours, research the perspectives of hiking and trekking tourism in Split-Dalmatia County and analyze the economic and market justification of such an entrepreneurial venture. The comprehensive analysis of the work includes: opening a travel agency, analysis of the market validity of the model, state analysis as well as analysis of the competition with the associated marketing mix. In the marketing mix, for the needs of the work and the offer of a travel agency of this type, two excursions and three multi-day trips in the Split-Dalmatia County were designed, according to which a technical-technological analysis and finally economic-financial analysis were performed. Split-Dalmatia County has an abundance of natural resources and sights, but in the analysis of the market base of the model it is clear that there is much room for improvement in terms of offering such a tourist product, which is quite unrepresented. The profit and loss account shows that the agency would make a profit from the first year of operation, which clearly shows that the venture to open a tourist agency focused on hiking in Split-Dalmatia County has justification and potential profitability in the market.