Ecological tourism or ecotourism is a type of tourism that takes place in undisturbed natural areas in form of sustainable management on natural attractions. Ecotourism in Croatia is still in its infancy, but the positive thing is that Croatia abounds in protected areas, especially national parks. The oldest national park in Croatia are Plitvice Lakes that abound in natural beauty and are the most visited park in the country. There are 7 more national parks along Plitvice, as well as a great number of nature parks and other forms of protected areas. Due to such quantity and the quality of natural resources the possibilities for Croatia are huge. Recently, there have been more and more tourism-related projects, both national and international. These projects aim to achieve the best preservation of protected areas as well as to improve the evaluation of eco- destinations in Croatia. So the projects have been implemented in most of the protected areas around the country, with the aim of increasing valorisation and preservation in those areas. On the example of Plitvice Lakes National park, we can see the current state of the park, the things that can be changed, and future plans. It's obvious that some of the things are good, but there is still some room for improvement. It’s positive that people are becoming more and more aware of the importance of ecology and ecotourism, as is evident from the conducted survey questionnaire. The survey also shows that respondents believe that ecotourism in Croatia is not at the highest level, and also that promotion can be done in a better way. The main goals for the future are to valorise the potentials of protected areas better, to promote them better, to develop eco-tourism awareness among domestic and foreign clients, and to raise the overall ecotourism to a higher level. Also, Croatia aims to become competitive with neighbouring and Mediterranean countries in the future.