Lastovo is an island located in the Adriatic Sea which is one of the Croatian islands with the most forest areas. Apart from the natural beauty and peace it offers, Lastovo has great potential as a destination for nautical tourism. Special features of nautical tourism are seasonality and business in concessionary terms whose purpose is to put the natural resources of a particular site into economic function. Croatia offers a natural basis for the development of this type of tourism, but nevertheless lags behind in the quality of nautical tourism products. The construction of a nautical tourism port can be justified by work for the benefit of citizens as soon as employment and standards increase, as well as quantitative and qualitative increases in service levels. The nautical port's interaction and its location must result in a positive image of the site-based destination as a site of high quality nautical tourism that has a protected harbor, safe and geographically located in an attractive location that provides the possibility of mooring, accommodation and services, as well as various accompanying events and manifestations. In this paper, an assessment of the feasibility of constructing such a nautical port of the island of Lastovo will be presented by the method of analysis, synthesis, descriptive and deduction.