With the most fertile for many plains of the Balkan Peninsula, the forest wealth and the numerous visits of migratory birds, the abundant and particularly domesticated livestock and the fish-bearing basin of the Strymon estuary. With the historic monasteries, towers and churches of Byzantium, the ancient cities and historical sites, and at the same time with the mountains, water and history to be the field of development of new leisure activities. With routes for pedestrians and cyclists, climbers and ice climbers, natural baths and gastronomy with character, the Regional Unit of Serres will be a big surprise for everyone.