On the wildest side of Mount Parnitha, stands the impressive hill of Arma. The via ferrata in Arma starts upon the Monastery of Klisti in Fili, and then the path passes through some gap spots and this is quite exciting. But what really makes it special is the direct contact with the uniquenature of the imposing cliff.Overall, the via ferrata is approximately 13 kilometers and can be covered by a small group of people with some experience, in less than 5 hours.