Known as one of the most rugged and formidable sanctuaries in Bulgaria, Djendema Reserve is the largest protected area in Central Balkan National Park and the second largest in the country. Its name originates from the Arabic-Turkish word cehennem ("hell" or "inferno")—a historic reference by locals to this dramatically inaccessible, cliff-bound region of the mountain.
Established in 1953, Djendema spans a vast area of over 4,220 hectares. In recognition of its pristine and undisturbed ecosystems, UNESCO officially designated Djendema as a Biosphere Reserve under the "Man and the Biosphere" program in 2017.
The reserve encapsulates the entire drainage basin of the Byala River, the upper course of the Tundzha River, and the striking Tazha River Gorge. Its terrain features dizzying precipices, sheer granite and limestone walls, deep ravines, and jagged peaks from which pristine mountain streams emerge.
Dense beech and mixed woodlands cover nearly 70% of the reserve. Averaging between 100 and 150 years of age, these ancient forests have remained largely untouched due to the natural defense of the steep terrain. The upper third of the reserve transitions into high-altitude subalpine grasslands.
Because human interference is virtually non-existent in most of the reserve, wildlife thrives in its natural, undisturbed habitat:
The undisputed icon of the reserve is Raysko Praskalo ("Heavenly Sprinkler")—the highest waterfall on the Balkan Peninsula, cascading from a height of 124 meters. Plunging down the cliffs below Botev Peak, it is easily accessible to hikers from the nearby "Ray" Mountain Hut. Most other waterfalls within Djendema's deep gorges remain secluded and hidden from human trails.
Lovech region
3.4 km away
Plovdiv region
3.8 km away
Plovdiv region
4.2 km away
Plovdiv region
4.7 km away
A guide to Bulgaria's three national parks and eleven nature parks — Rila, Pirin, Central Balkan, Vitosha, Vrachanski Balkan, Strandzha, Persina and the rest — what the categories mean and which to visit.
A guide to Central Balkan National Park: its nine strict reserves, the UNESCO-listed primeval beech forests of Boatin and Tsarichina, the Dzhendema cliffs, bears and wolves, and which town to enter from.
How to hike Botev Peak (2,376 m), the highest summit of the Balkan Mountains, from Kalofer — past Raysko Praskalo, the highest waterfall in the Balkans.
Dzhendema Reserve is located in Plovdiv, Bulgaria.
Dzhendema Reserve 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.
Dzhendema Reserve is best walked from May through October, when the trail is clear of snow and weather is generally stable. Summer middays can be hot at lower altitudes — start early. Winter walking requires proper gear and route knowledge.
Suitability depends on the specific route. Bulgarian trails range from paved family-friendly paths to multi-day high-mountain crossings. Check the length, elevation gain, and surface before setting off. Sturdy footwear, water, and a basic map (offline or paper) are essential even on short walks.
