Protected areas are a tourist attraction and are extremely attractive to tourists and as such are a destination for an extremely large number of tourists. National parks, which by definition are open to tourism, also became a kind of touristic brand. Although tourism in the protected area has positive effects such as popularizing nature and contributing to increasing environmental knowledge and awareness, as well as the fact that such tourism is important for the economy, since developed tourism requires employment of a large number of local people, it also has negative effects on the protected area. Increasing number of visitors also leads to an increase in wastewater, accumulation of waste in general, light pollution, noise and, ultimately, a change of scenery due to increased tourist capacity. This can have a major impact on the organisms that have habitats in the protected area, on their abundance as well as on the quality of the habitat. The Krka National Park is leading the way in addressing these challenges with a sustainable management plan and specialized method for visitor management. Such Park policy is worth thorough analysis in the hope that it will become a model for other protected areas.