Plitvice Lakes National Park is Croatian oldest and most visited national park, visited by tourists from all over the world. In the last few years there has been a big problem of overcrowding and high concentration of visitors, especially during summer season. Most visitors come to this area of Croatia only to visit the Plitvice Lakes National Park, and because of that the lenght of stay is extremey short. As it is a sensitive natural resource, the concentration of tourist in the period from June to Sepetember is extremely harmful to nature. However, apart from Plitvice Lakes National Park, this area of Croatioa offers much more and there are a large nuber of areas and activities tahat tourists of the park are not familiar with or about which they know very little. Accordingly, the theoretical part of this paper deals with general information and the management of the Plitice Lakes National Park and with tourist offer of the Park's microregion. Primary survey was used to investigate the perception of visitors in order to find out which attraction tourists are familiar with and potentially find out what their attitude is towards the tourist offer of the microregion. The research was conducted in the area of the Park itself, and also in accommodation facilites where tourists stay. The survey questionnaire was made in a standard physical form and in an online version. Primary research has shown that tourists are largly unfamiliar with the tourist attractions and activities offered by the Park's microregion. Promotional activites should be improved in order to inform tourists about tourist offer and thus encourage them to visit other tourist attractions and extend their stay in this area of Croatia.