The Kostadinov Monastery is the largest and best-preserved among the rock monasteries situated in the Osmar Gorges on the Shumen Plateau. Established between the 12th and 14th centuries, it served as a sanctuary for Hesychast monks seeking solitude and silence. Local legends often link its name to the Bulgarian Tsar Constantine Tikh Asen, adding a layer of royal history to this sacred site. Architecture and Sacred Spaces Carved into a vertical cliff at a height of about 10 meters, the monastery consists of two main sections: - The Rock Church: Features a distinct altar and fragments of medieval frescoes. Some historians believe the murals depict St. Gregory of Sinai, the founder of Hesychasm. - Monastic Quarters: A second room containing niches, grooves, stone beds (nari), and a monastic grave, offering a glimpse into the ascetic life of the medieval hermits. The "Eye of Osmar" Natural Phenomenon Perched on the cliff above the monastery is an extraordinary natural formation known as The Eye of Osmar (or The Ring). This rock window, carved by the forces of nature, is one of the most iconic landmarks in the region. Access and Logistics - Starting Point: The village of Osmar (also famous for its aromatic wormwood wine). - Climb: Access to the monastery is facilitated by a specially installed metal ladder. - Hiking: The trail leading to the site is scenic and well-suited for a day trip.
Shumen
2.2 km away
Shumen
3.6 km away
Shumen
3.8 km away
Shumen
5.6 km away
Kostadinov manastir is located in Shumen, Bulgaria.
Kostadinov manastir is most easily reached by car. Use the coordinates above to navigate, or open the location in OpenStreetMap or your preferred maps app for turn-by-turn directions. Public transport options vary by region — for remote destinations a rental car gives the most flexibility.
Caves can be visited year-round — the temperature inside stays roughly 10–12°C regardless of season. Spring and autumn are quieter than peak summer. Bring a warm layer and sturdy footwear; some caves close in winter when access roads become impassable.
Access to caves varies. Show caves typically run guided tours during posted opening hours; wild caves require proper equipment and experience. Inside, the temperature stays cool year-round (~10–12°C) — bring a warm layer, sturdy non-slip footwear, and a torch even on guided tours.
