The purpose of the research was to select the most suitable location for marina construction in the County of Primorje and Gorski Kotar, based on multi-criteria analysis. Potential locations for marina construtions are defined by the Spatial Plan of the County of Primorje and Gorski Kotar, and in this paper three locations are analyzed and evaluated: Rab, Kačjak (Dramalj) and Voz (Krk). The multi-criterion analysis is applied for the spatial evaluation of the location for marina construction in the County of Primorje and Gorski Kotar. Multi-criterion is being done, based on 5 criteria groups and 14 subcriteria, using the Promethee and Gaia method. An assessment of the criterion weights and evaluation was achieved by interviewing the group of experts.The model was developed in the Visual Promethee software. Using the Promethee and Gaia method location Rab was selected as the most suitable one.