Selective tourism has developed as a response to mass tourism and is aimed at fulfilling the specific wishes and needs of tourists, i.e. attracting specific market niches. Selective tourism can also be described as tourism that aims to The main features of the diversification of quotes, designed to display the large number of Activities and contents that the tour can offer. This article will analyze and describe the forms of optional tourism present in the tourist offer of Istrian County. The County of Istria is one of the largest counties in the Republic of Croatia and one of the most developed counties for tourism. The county offers visitors easy access to destinations within its borders by air and sea. Tourism in Istria began to develop already in the first half of the 19th century, and over time new forms of tourism began to appear. Every destination in the County of Istria offers several forms of tourism, whether it is cultural, sports, wellness, rural, ecological, nautical or event tourism. New tourist facilities were opened, new tourist products and services were created, and tourism activity achieved great success. The development of this branch benefits both the local community and tourists. Analyzing the aforementioned general tourist information about Istria, as well as the optional forms of tourism offered in the County of Istria, we can conclude that the region has great potential for further development of the aforementioned forms. Although currently there are not enough developed and good enough tourist resources, with the help of cultural, natural and climatic features of this region, Istrian County can develop various forms of selective tourism and become the strongest in tourism.