Plizio Visual Lab
Zelenci Nature Reserve
The Zelenci Nature Reserve is located on the western edge of the village of Podkoren and is recognized as the source of the Sava Dolinka, one of the primary headwaters of the Sava River. The centerpiece of the reserve is a small, emerald-green lake fed by numerous underwater springs emerging through the chalky lakebed, which gives the water its animated hue. Maintaining a constant temperature of approximately 6 degrees Celsius, the lake remains ice-free even during the harshest winters. The surrounding Drni marshland provides a crucial habitat for a variety of rare flora and fauna, including carnivorous plants and protected amphibian species. Historically, the area gained international fame in the 19th century when the British naturalist Sir Humphry Davy described it as one of the most beautiful valleys in Europe. Since 1992, the 47-hectare area has been strictly protected as a nature reserve to preserve its delicate wetland ecosystem. A system of wooden boardwalks and an observation tower allows visitors to experience the landscape without disturbing the fragile peat soil. Zelenci also has spectacular views of the Julian Alps and the Vitranc mountain group.
- Location: Slovenia
- Top sights: Razgledni stolp Zelenci · Naravni rezervat Zelenci · labirinti
- Nearby: Vršič Pass (6 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -4 | -3 | 2 | 6 | 11 | 15 | 17 | 17 | 12 | 8 | 3 | -2 |
| Rain mm | 58 | 66 | 74 | 83 | 110 | 120 | 125 | 140 | 130 | 118 | 119 | 85 |
📋 Practical info
Geography
Facts
- Located at an elevation of 836 meters above sea level
- The lake has an average depth of 2 meters
- The water temperature is consistently 6°C year-round
- The total area of the reserve is 47 hectares
- Officially designated as a nature reserve in 1992
- The water originates from the underground Nadiža stream
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Zelenci Nature Reserve (10)
labirinti
Labyrinth made of hedges or stones in the Zelenci area, a place to relax.
Župnijska cerkev sv. Duha
Parish church in Kranjska Gora, dedicated to the Holy Spirit.
Josip Lavtižar
Sculpture or monument in honor of Josip Lavtižar, a local historian.
RTV hiška nad Planico
Viewpoint above Planica, site of a former RTV camera.
Cerkev sv. Tomaža
Church near Kranjska Gora, dedicated to Saint Thomas.
Muzej Planica🏛 museum
Museum in Planica showing the history of ski jumping and the hills.
Ciprnik
Mountain peak in the Julian Alps, above Planica.
Petelinjek / Hahnenwipfel
Mountain peak in the Karawanks, on the border with Austria.
Sights nearby
Frequently asked questions
What is Zelenci?
How warm is the water?
Is the access easy?
Can you watch birds there?
Where is the reserve located?
Zelenci Nature Reserve: where is it located?
Zelenci Nature Reserve: what is there to see?
Zelenci Nature Reserve: when is the best time to visit?
Zelenci Nature Reserve: why is it worth visiting?
























