Arnaia, is one of the most picturesque villages of northern mountainous Chalkidiki, capital of the Province Arnaias and seat of Mitropolis Ierissos, Mount Athos and Ardameriou. It is built in an altitude of 600 m. at the foot of the woody mountain Holomonta, having in front of her to the north-eastern, a valley with grasslands and opposite the forests of mountain Drevenikos.