Generally speaking, river tourism is less established and represented in the Republic of Croatia than other tourism-related industries. However, due to its outstanding natural resources, city of Karlovac has a great potential of development of this type of tourism. Historically, rivers Dobra, Korana, Kupa and Mrežnica are considered the rivers of Karlovac and are hence analysed in this paper as points of tourist interest. River tourism encompasses a range of river-based tourism activities, including fishing, rafting, sailing, and cruise. It also comprises tourist attractions that are situated along riverbanks. Important global rivers have attracted travelers since antiquity, and they have been recognized as a valuable tourism resource. They provide gorgeous scenery, recreational opportunities, and riverbanks in many famous tourist sites. They also serve as key transportation routes and drinking water supplies. The purpose of the paper is to critically examine the issues and difficulties associated with developing an alluring tourism offer, as well as to create a framework for a more comprehensive assessment and comprehension of the tourism offer on the banks of the Karlovac Rivers.