mt athos - scenic view from boat on osiou gregoriou monastery at mount athos, chalkidiki, central macedonia, greece, europe.

aegean agion ancient architecture athos autonomous central chalkidiki church coastline dafni europe faith ferry formation greece gregoriou grigoriou halkidiki historic history holy kassandra khalkidiki landmark macedonia mediterranean monastery moni monk mount mountain mountains nature orhtodox oros orthodox osiou ouranoupoli panorama peninsula religion rhodope rock sanctuary sea seascape seashore simonopetra summer thessaloniki tourism travel