Top 20 Lakes in Notranjsko-kraška
Best lakes in Notranjsko-kraška are characterized by unique hydrological phenomena, including intermittent lakes that periodically fill and drain. This region in Slovenia features a dynamic natural landscape shaped by its complex underground karst system. The area offers diverse recreational opportunities and is recognized for its ecological significance. Visitors can observe an ever-changing environment, from vast lakes to lush meadows.
Best lakes in Notranjsko-kraška
- The most popular lakes is Lake Cerknica, a lake that is known as one of the…
Last updated: May 15, 2026
Lake Cerknica
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Natural wonders, sometimes water, sometimes nothing.
Very well-known seepage lake, due to the karst landscape.
Have only seen a small part, it is worth more.
More info: de.wikipedia.org/wiki/Cerkni%C5%A1ko_jezero
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Gravel path near Otok, Lake Cerknica
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Birdwatching Pavilion at Lake Cerknica
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Petelinjsko Lake
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Planina Polje
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Lynx Trail seasonal lakes
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Wooden Bridge at Lake Cerknica
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Lake Podpeč
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Petelinje Intermittent Lake
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"Island" of Otok
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Tips from the Community
This is not Cerknica Lake, but the surroundings of the Postojna Cave.
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Over the bridge you reach the famous cave, which is definitely worth a visit
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Beautiful panoramic point for birdwatching or just to admire the lake (when there is one) in all its beauty
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Beautiful ephemeral lake a few kilometers from Pivka
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The Pivka area is famous for the presence of several intermittent lakes fed by karst phenomena which are very common in these areas
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When the Cerknika plain becomes a lake, this small village turns into a beautiful island connected to the rivers by two bridges. Cycling in this period gives this small village a truly incredible charm.
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Frequently Asked Questions
What makes the lakes in Notranjsko-kraška unique?
The lakes in Notranjsko-kraška are renowned for their unique hydrological phenomena, particularly their intermittent nature. They periodically fill with water and then drain away due to a complex underground karst system, transforming from vast lakes into lush meadows. This dynamic cycle offers an ever-changing landscape, making each visit a distinct experience.
Which lake is known as Europe's largest intermittent lake?
Europe's largest intermittent lake is Lake Cerknica. It's famous for its 'vanishing' act, where it transforms from a large body of water into a green meadow, influenced by rainfall and underground water levels.
Are there good opportunities for birdwatching in the Notranjsko-kraška lake region?
Yes, the region is excellent for birdwatching. Lake Cerknica, for example, is an internationally important wetland and a Natura 2000 area, home to 276 bird species. You can visit the Birdwatching Pavilion at Lake Cerknica or the Observatory - Cerknica Intermittent Lake for optimal viewing.
What kind of biodiversity can I expect to see around these lakes?
The lakes, especially Lake Cerknica, boast exceptional biodiversity. Beyond 276 bird species, the area is home to 45 mammal species, 125 butterfly species, and 15 amphibian species. Petelinje Lake is also notable as the only known habitat for the endemic karst fairy shrimp (Chirocephalus croaticus).
Are there family-friendly activities around the lakes in Notranjsko-kraška?
Yes, many areas are family-friendly. The changing landscape of lakes like Petelinjsko Lake offers a magical experience for families. You can also find easy trails like the Gravel path near Otok, Lake Cerknica, and facilities at the Birdwatching Pavilion at Lake Cerknica and the Observatory - Cerknica Intermittent Lake.
What is the best time to visit the Notranjsko-kraška lakes to see them full of water?
The best time to see the intermittent lakes full of water is typically after heavy rains in late autumn and spring. However, due to their dynamic nature, water levels can vary significantly. Visiting the Visitor Center Lake Cerknica or Ecomuseum of the Seasonal Lakes of Pivka can provide current conditions and insights.
Can I cycle around the lakes in Notranjsko-kraška?
Yes, cycling is a popular activity. There are cycling and walking trails surrounding Lake Cerknica, offering scenic routes. For more cycling options, you can explore routes in the Cycling in Notranjsko-kraška guide, which includes routes like 'Lake Cerknica – Lake Cerknica loop from Rakek'.
Are there hiking trails near the lakes?
Absolutely. You can find various hiking opportunities, including easy walks. For instance, the 'Notranjska Regional Park Parking Lot – Lake Cerknica loop from Dolenje Jezero' is an easy hike. More options are available in the Easy hikes in Notranjsko-kraška guide.
What is the significance of the Pivka Intermittent Lakes?
The Pivka Nature Park is home to a unique collection of 17 intermittent lakes, making it a globally significant karst phenomenon. These lakes, like Lynx Trail seasonal lakes, appear and disappear based on rainfall, creating diverse and ever-changing environments. Petelinjsko Lake, for example, is known for its longer water retention and unique ecosystem.
Are there any cultural or historical sites related to the lakes?
Yes, Lake Cerknica has significant cultural and historical ties, having been documented since antiquity. Its workings were studied by the 17th-century polymath Janez Vajkard Valvasor, contributing to the understanding of karstology. The Visitor Center Lake Cerknica and Museum provides interactive exhibits on the lake's geology, ecology, and local folklore.
Where can I find food or accommodation near the lakes?
While specific accommodation details are not provided here, Lake Podpeč offers facilities including a restaurant and cafe. The region generally has options in nearby towns and villages, and the Visitor Center Lake Cerknica can provide local recommendations.
What is the 'Island' of Otok and why is it notable?
The 'Island" of Otok' is a settlement near Lake Cerknica. It becomes particularly notable when the lake covers the surrounding countryside, giving the village an unforgettable charm and a sense of being an island amidst the waters.
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