Ostrog Monastery clings to a vertical rock face 900 metres above the Zeta River valley, its white façade visible for kilometres across the Bjelopavlići plain. Built in the seventeenth century around the cave hermitage of Saint Basil of Ostrog, the monastery remains one of the most visited pilgrimage sites in the Balkans. The Lower Monastery, constructed in 1824, serves as the entry point, connected to the Upper Monastery by a winding footpath that pilgrims traverse barefoot in fulfilment of vows. The Upper Monastery houses two cave churches — the Church of the Presentation and the Church of the Holy Cross — both adorned with frescoes that retain their pigment despite humidity and the narrow confines of the limestone grottoes. Saint Basil of Ostrog, born Stojan Jovanović in 1610, served as Metropolitan Bishop of Zahumlje before retreating to these cliffs in 1665 to escape Ottoman persecution. He died in 1671, and his relics, preserved in a silver sarcophagus within the Upper Church, are credited with healing powers. Orthodox Christians, Catholics, and Muslims alike make the pilgrimage, particularly during the saint's feast days in April and May, when the narrow mountain road becomes impassable with foot traffic. The monastery survived Ottoman raids, Austro-Hungarian occupation, and Yugoslav state atheism, its survival attributed by believers to the saint's intercession. The architectural footprint is minimal — the Upper Monastery occupies less than 300 square metres — but the vertical drama of its placement transforms the site into an act of devotion rendered in stone. The cliff face itself functions as the monastery's rear wall, and the cave chambers remain cool even in August. Frescoes in the Church of the Presentation date to the late seventeenth century, painted by an unknown master whose work shows Byzantine influence filtered through post-medieval Balkan idioms. The grapevine that grows from a cleft in the rock outside the Upper Church is said to have sprouted from a branch Saint Basil held when he died, its roots impossibly anchored in stone rather than soil. An Ostrog Monastery tour from Podgorica typically departs early to avoid midday heat on the exposed path between the two monastery levels. The drive northeast from the capital takes 90 minutes, crossing the Morača River canyon before climbing switchbacks through pine forest. Many pilgrimage routes combine Ostrog with Lovćen National Park or continue west to the Bay of Kotor, bracketing the monastery visit within a longer loop through Montenegro's karst highlands. The site remains an active monastic community, and visitors are expected to dress modestly and maintain silence within the cave churches.