Through this master's thesis, a conceptual design for the arrangement of the municipal port in the Žurkovo bay in the municipality of Kostrena was developed. Thesis covers three variants of the organization of the port, and after evaluating data, one was chosen as a most acceptable option. In addition to the organization of the port, two variants of the protective breakwater and variants of the piers were also created. The work also includes previous analysis of location, such as the basic data of the locality, a historical overview, an overview of existing bay development projects, geological characteristics of the soil, meteorological and climatic data. The calculation methodology was presented and the hydraulic calculation was performed for both types of breakwater, along with sub-variants for the vertical breakwater. In addition, graphic materials were made that shows the organization of port berths in all three variants, two variants of the breakwater and cross-sections. All variants includes construction of a protective breakwater as protection of the harbor area, coastal wall and mooring piers. Variants of the port organization and berths disposition differ in the number of available berth places, starting from the first variant with 164 berths, to the last with 147. Also, through this work, a calculation of the amount of material for the construction of the breakwater was made, as well as an analysis of the impact of the intervention on the environment and the view of the area of the Žurkovo bay itself. The most favorable solution for the organization of the port and the performance of the breakwater is shown through graphic visualizations.