In a peaceful location just outside Alonia is located the monastery of Agios Athanasios. It was once a metochion of Iviron Monastery on Mount Athos, while today it falls in the administration of the Metropolis of Alexandroupolis. Apart from the stone church, which blends perfectly with the natural environment, in the monastery you will also have the opportunity to admire the iconographies of Theophanes the Cretan.