Climbing towards the Byzantine Monastery of Panagia Hozoviotissa is not a piece of cake but it is worth the effort, as this is one of the most important and oldest religious centers of the Aegean, founded on 1088 A.C. However, the architecture of the monastery can impress you by itself, being built inside the core of the mountain which is like it has been cut vertically. Inside you will get to see some wonderful relics like the manuscripts, the holy gospels of the 10th century, the royal byzantine bull of the 11th century, elegant hand-made vestments, tributes, etc. The monastery is open to the public until the afternoon, but it closes at noon between 13:00 and 17:00.