Nowadays, cruising tourism is one of the most dynamic segments of the world tourism market. Demand for this specific form of tourist offer is constantly increasing and in parallel with it the world`s cruise ship fleet is also growing and its structure is changing in favor of larger ships, mostly megaships. The world`s leading cruise destinations are the Caribbean, the Mediterranean and North America and their development is closely linked to the demand of the local population so leading emission markets for cruising today are North America and Europe. Impacts of cruise tourism on a destination can be divided into three basic categories: economic, social and ecological and they are increasingly intensifying with the growth of cruise traffic and the construction of larger ships (gigantism). Impacts of cruise tourism are particularly specific in transition countries, including the Republic of Croatia, which have an insufficiently developed environmental protection system which is therefore unable to adequately absorb all pollutants. In such countries, cruising is often being promoted as a strategy for improving economic stability while neglecting its negative impacts on the environment. In Croatia, along with Dubrovnik, the increasing number of cruise tourist arrivals has been recorded in Split in recent years. Consequently, the aim of this paper was to examine the attidudes of local and institutional respondents about the impacts of cruising in Split and to conclude the main hypothesis that the development of cruise tourism is in collision with sustainable tourist development of Split. The survey was conducted on a sample od 102 local and 30 institutional respondents who expressed their degree of agreement with certain statements about the influence of cruise tourism in Split. At the end of the research, assuming that all hypotheses are true and according to some additional tests, the main hypothesis was accepted as true. Finally, recommendations are given for the further development of cruise tourism in Split in accordance with the principles of the sustainable development.