Intensity of action and frequency of high and low pressure barometric fields of large and medium scale have great influence on dynamics of pluviometric regime. On their action depend characteristics of thermic regime, relative humidity, cloudiness and windiness, which directly affect the precipitation. Concerning that the water balance is difference between the inflow and evaporation, it comes that precipitations do not have just special role, but they are also the most important factor of the Una river regime. Disposition and precipitation structure are the river regime's essential assumptions, so at the same annual height of precipitation, we have more water in rivers in the year with more precipitations during the colder period. Then we have less evaporation so the inflow from the basin is bigger. The amount and disposition of the precipitation in the Una River basin is analyzed in this paper in order to define the pluviometric regime of this area. Pluviometric regime greatly influences the Una river regime and water balance, what was the reason for this analysis and further hydrological research in the Una River basin.

For better development of alternative tourism supply in mountain tourism destinations it is necessary to identify and evaluate tourism attractions that could be better valorised when creating tourism products. It is an essential part of the destination analysis to determine perception of local population and tourists when evaluating tourism attractiveness. Olympic Mountain Bjelasnica in Bosnia and Herzegovina is a representative case study of mountain tourism destination, whose recent phase of tourism development is characterized by a variety of tourism supply that allows practicing many forms of tourism with the dominance of the winter tourist season and the skiing tourism of mass character. The principal aim of the study is to determine the differences in the evaluation of tourism attractions of alternative tourism in tourism supply of Bjelasnica within and between group of local residents and tourists. Direct survey was conducted during the summer 2016 and sample included 98 local residents and 111 tourists. Results show: a) tourists evaluate most of attractions higher then local residents, b) some attractions are higher evaluated by younger and more educated local residents, c) older tourists evaluate cultural and historical heritage better, while tourists with college degree are most satisfied with tourism and recreational infrastructure considering the age, gender and level of education, and d) all clusters of attractions are rated as more attractive by tourists who stay at purpose-built mountain tourist resort Babin Do, compared to those in Bjelasnica's villages. Results can be applied as a guideline to raise local residents' awareness of tourism attractions and developing more specific tourism supply that will address not solely mass tourism, but also alternative forms of tourism.