Lake Cerknica - Intermittent lake with unique ecosystem
Lake Cerknica (Cerkniško jezero) is one of the largest intermittent lakes in Europe, located in southwestern Slovenia. This unique karst lake mysteriously appears and disappears throughout the year, depending on rainfall and underground water flow. When full, it is a paradise for wildlife, birdwatching, and outdoor activities, while in dry months, it transforms into meadows and farmland.
Visitor Fees
- Free access to the lake and surrounding nature
- Guided tours & boat rentals: Prices vary
Transportation
- By Car – Best way to reach the lake; parking available near the visitor center.
- By Train & Bus – Limited connections from Ljubljana and Postojna.
- By Bike & Foot – Excellent for cycling and hiking around the lake.
Things to Do
- Boat, Kayak & Canoe Rides – Explore the lake’s hidden channels and wetlands when it’s full.
- Birdwatching & Wildlife Spotting – Home to over 270 bird species, amphibians, and wild animals.
- Hiking & Cycling – Scenic trails with views of the lake and surrounding karst landscapes.
- Photography & Nature Walks – Capture the lake’s ever-changing beauty.
- Caving & Exploring Karst Phenomena – Visit nearby caves and underground rivers.
Why People Enjoy Visiting
Visitors love Lake Cerknica for its mystical nature, changing landscapes, and rich biodiversity. The experience of seeing a lake appear and disappear makes it one of Slovenia’s most fascinating natural wonders.
How Old is Lake Cerknica?
- Formed over thousands of years by karst processes.
- First documented by ancient Roman writers and later studied in 1689 by naturalist Janez Vajkard Valvasor.
List of Activities
- Boating & kayaking
- Hiking & cycling
- Birdwatching & photography
- Fishing (when the lake is full)
- Caving & karst exploration
Additional Nearby Attractions
- Rak Škocjan Valley – A karst valley with caves and natural bridges.
- Postojna Cave – Slovenia’s most famous cave system.
- Snežnik Castle – A fairy-tale castle near the lake.
With its changing landscapes, diverse wildlife, and outdoor adventure opportunities, Lake Cerknica is a must-visit natural wonder in Slovenia.