The Dadia Forest is a large area of natural woodland in the Evros regional unit in northeastern Greece. The forest consists mostly of oak and pine. It is one of the most important areas in Europe for birds of prey, and the only forest in Europe where all four European species of vulture can be seen. It is a fully managed protected area of 7,290 hectares and is visited by about 35,000 people each year.

The Rhodopes are a mountain range in Southeastern Europe, and the largest by area in Bulgaria, with over 83% of its area in the southern part of the country and the remainder in Greece. Golyam Perelik is its highest peak at 2,191 meters (7,188 ft). The mountain range gives its name to the terrestrial ecoregion Rodope montane mixed forests that belongs in the temperate broadleaf and mixed forests biome and the Palearctic realm. The region is particularly notable for its karst areas with their deep river gorges, large caves and specific sculptured forms, such as the Trigrad Gorge.