The Dinaric Arc, a mountain range named after the mountain Dinari, which forms part of the nature border between Croatia and Bosnia and Herzegovina, stands out for its various relief forms and beautiful landscapes that represent important habitats for numerous plant and animal species. In addition to natural resources, valuable archaeological remains from antiquity and the Middle Ages can be found throughout the entire area of the Dinaric Arc, together with interesting remains of the former pastoral life on the mountains. The unique forms of the karst relief, untouched nature that is home to various endemic and endangered species of plants and animals, and valuable cultural and historical heritage were the main motives for the World Organization for Nature Protection or WWF to launch a project called "Parks of the Dinaric Arc" in 2011 with the purpose of creating a network of protected areas between the eight countries that the Dinaric Arc naturally connects. Croatia is among these countries. The project resulted in the formation of the association "Parks Dinarides - The Parks Dinarides network" in 2014, within which mutual exchange of knowledge and good practices between member countries is carried out with the aim of raising the level of awareness and knowledge about the importance of protecting natural areas and strengthening the existing protected areas of the Dinaric Arc. When this network of protected areas was founded, the Statute of Parks Dinarides was made, which determined the internal organization of the network and its basic functions, and 60 parks joined it, while today there are over a hundred protected areas from all eight member countries. In addition to the rapid expansion of the network, the association of Parks Dinarides, through its work and commitment to the protection of natural areas, has proven that it is a valuable example of cooperation between several protected areas, especially in today's era full of challenges in the sphere of natural area protection, which has come due to climate change and humans negative effects on nature and the environment. One of the most adequate ways to reduce humans negative effects on the environment is to encourage sustainable tourism, which can also contribute to the strengthening of protected areas.