An important part of the National Park of Eastern Macedonia and Thrace (Gazette No. 854/16-9-96 apof. 5796) is within the Xanthi prefecture, which covers the area of Nestos Delta, Vistonida Lake, Ismarida Lake and the surrounding area of lagoons. There are wetlands of international importance with rich flora and fauna. More than 400 species of birds have been counted in their habitats. Some of those are permanent residents, others overwinter, and there are many species that only rested here during the arduous journey of migration. At the same time, there is a large variety of fish species. Only in the region of Porto Lagos have been observed 34 species, mostly seafood. Of course there are freshwater species.