Walk the pine-shaded perimeter trail of Black Lake in Durmitor
Circle the mirrored glacial waters of Crno Jezero beneath the looming limestone massif of Medjed peak.
At a glance
June to October when mountain trails are free of snow and alpine wildflowers carpet the meadows
Early morning for still, glass-like water reflections before breeze picks up
1.5 to 2.5 hours for the complete 3.5-kilometre lakeside circuit
Glacial lake perimeter hike · Alpine nature walking
Easy
National park entrance fee payable at the gate
Why Crno Jezero is the sublime emotional heart of Montenegro's highlands
Hidden within UNESCO-listed Durmitor National Park, Crno Jezero (Black Lake) is celebrated as the most beautiful of northern Montenegro's 18 glacial 'mountain eyes' (gorske oči). Composed of two interconnected bodies of water—the Big Lake and the Small Lake—the basin sits at an altitude of 1,416 metres, wrapped in ancient black pine and spruce forests.
The lake earns its evocative name from the dramatic reflection cast by the looming, 2,287-metre wall of Mount Medjed (The Bear), which turns the deep waters an intense, velvety sapphire-black on calm mornings. Walking the lakeside path carries you past bubbling cold mountain springs and fragrant pine-needle carpets.
Unlike heavily commercialised Alpine resorts, Durmitor retains a quiet, brooding wilderness character. Wooden rowboats glide across the placid water, and the sounds of mountain wind through needles and birdsong dominate the air.
Walking the circular shore trail beneath Medjed
The entrance promenade
Walk through the park barrier along an asphalted avenue flanked by towering black pines down to the lake shore.
The Big Lake shoreline
Follow the well-maintained dirt path around Veliko Jezero, stopping at wooden benches and pebble coves.
The narrow strait and Small Lake
Cross the scenic strait connecting both lakes, where in midsummer water cascades gently through a natural stone culvert.
Lakeside boat rental or cafe
Rent a classic wooden rowboat to paddle across the mirrored surface or relax at the rustic log-cabin restaurant on the shore.
Plan your experience
When to go
June through October is optimal. July and August bring sunny alpine days, while September and October offer crisp autumn foliage when the golden beech trees contrast against evergreen pines.
Getting there
From Žabljak, walk 35 minutes along the signposted pedestrian path or drive 5 minutes to the designated national park parking area.
Booking & permits
No advance booking is required. Park entry passes are purchased directly at the ranger wooden kiosk at the entrance gate.
What to bring
- Sturdy walking shoes or trail sneakers with good tread for forest paths and exposed roots
- Light windbreaker or rain jacket as mountain weather can shift quickly in the afternoon
- Reusable water bottle to fill at pure glacial mountain springs around the trail
Before you go
- Pair the perimeter walk with a drive along the breathtaking Durmitor Ring scenic mountain route (Durmitorski prsten)
- Try local Durmitor specialties in Žabljak: slow-cooked lamb under the bell (sač) and savory kačamak potato-corn porridge
- Visit the Tara River Canyon viewpoint and the historic Đurđevića Tara Bridge nearby
Official information
Always verify permits, seasonal weather conditions and access directly with public authorities:
Official state management authority for Durmitor National Park, visitor passes, and conservation information.
Official national tourism board for outdoor experiences, hiking routes, and Balkan cultural journeys.
Ways to experience it
Walk the marked circular trail at your own pace, taking time to pause at scenic wooden benches and shoreline pebble beaches.
Join a guided walking tour with a local park naturalist explaining endemic Balkan flora, fauna, and karst geology.
Certified providers & operators
Durmitor Adventure Hub
Guided hiking, cycling, and Tara River canyoning excursions
Žabljak-based licensed mountain guide collective operating within Durmitor National Park.