The main topic of this graduation thesis are current state and development perspectives of tourism in the Lower Neretva valley. It is administratively divided into seven cities and municipalities. The cities are Metković, Opuzen and Ploče, and municipalities are Slivno, Kula Norinska, Zažablje and Pojezerje. This region has an area of about 412,56 km2 and it is an integral part of the Dubrovnik-Neretva County. The paper analyzed natural and anthropogenic tourism resources, basic indicators of tourism development, such as tourist movements, number of overnight stays and accommodation capacities. Also, the aim of the paper was to explore which potential tourism forms are suitable for development in this area. In addition to the above aims, the applicability of the ArcGIS computer software in the function of tourism development and inventory of tourism resources is also presented. During the process of writing this paper, numerous scientific literature and sources related to tourism and Lower Neretva valley were analyzed. In the analysis of the basic tourist indicators, numerous graphs and tables were create based on the statistical data. The thematic maps were created using ArcMap, application of ArcGIS software. The digital elevation model of Lower Neretva valley was created using Surfer 11 software and the data for creating a relief model is downloaded from the Global Data Explorer website. Furthermore, a certain part of photo documentation was collected using fieldwork method. A survey was conducted with the main purpose to examine the opinions and attitudes of the local population on the present state of life quality and economic development, and also about the current state and potential for development of tourism in the Neretva region. For the purpose of this paper, an Interactive Web GIS Map of Lower Neretva valley was created and uploaded on the Google Maps platform. At the end of the work it can be said that both hypothesis can be accepted. The analysis of natural tourism resources and the results of the survey support the claim that the tourist offer of Lower Neretva valley is based on the comparative advantages of physicalgeographic features. Nevertheless, it is traditional agricultural area with an extraordinary diversity of landscapes whose advantages in the tourist market should based on further valorisation of the natural, but also the cultural heritage. Also, the development of selective forms of tourism is a basic prerequisite for the tourist season extension. Most of the selective forms of tourism suitable for development in Lower Neretva valley, such as agrotourism, bird watching or hunting and fishing tourism, should reach their maximum during presason or postseason. There are numerous limiting factors and threats which could complicate the further development of tourism. Also, there is a lot to be achieved with good management and promotion in cooperation of all main participants.