The name 'Orlova Chuka' translates to 'Eagle's Peak,' referring to the high cliff formation above the cave entrance.
The cave consists of several levels, with the lower galleries still undergoing active karstification by underground water.
Excavations have uncovered prehistoric human remains and artifacts dating back to the late Paleolithic period.
The cave provides a seasonal hibernation site for at least 14 different bat species, including the Greater Horseshoe bat.
The cave was declared a natural landmark of national importance in 1963.
Some of the inner chambers contain 'moonmilk,' a rare white, creamy mineral deposit found in limestone caves.
Orlova Chuka is the second longest cave system in Bulgaria, spanning approximately 13,437 meters of total mapped galleries across multiple levels. Located in the Ruse region, the cave features significant karst formations including stalactites, stalagmites, and stone curtains. Archaeological evidence suggests the cave was inhabited by prehistoric humans during the Paleolithic era and by cave bears. The site serves as a vital habitat for several species of bats, which are strictly protected within the ecosystem. The interior maintains a constant temperature of approximately 10-14 degrees Celsius year-round. Visitors access the site via a steep path leading from the parking area near the village of Pepelina. The cave is situated within a protected natural landmark area along the Cherni Lom River canyon.
The dramatic, high-arched entrance of the cave which frames the view of the surrounding river canyon.
Wear a windbreaker or light jacket as the interior temperature remains cool regardless of the outside weather.
Use sturdy, non-slip footwear as the cave floor can be damp and uneven due to natural humidity.
Avoid touching the cave walls or formations, as oils from human skin can damage the fragile mineral growth.
Attempting to hike the surrounding canyon trails without proper hydration or maps, as the terrain is rugged and steep.
The cave is typically closed to visitors during the winter months (November through March) to protect the bat hibernation cycles.
Strict silence is required inside the cave to avoid disturbing the bat colonies; flash photography is prohibited.
