Simonos Petras Monastery, dramatically perched on a cliff on Mount Athos, is a significant Eastern Orthodox monastic site in Greece. Access is generally challenging due to the mountainous terrain and restrictions on female visitors to Mount Athos. A guided visit is highly recommended, as permits are required to enter the monastic community, and navigating the area alone can be difficult. The best time to visit is during the shoulder seasons (spring or fall) to avoid extreme temperatures and crowds. Expect to spend a full day or more to fully experience the monastery and the surrounding area. The cost involves permit fees, transportation to Mount Athos (usually by boat), and potential lodging or food expenses, totaling perhaps several hundred euros. Modest dress is required.