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Slovenia
Notranjsko-kraška
Cerknica

Cerkniško lake

The best road cycling routes around Cerkniško lake

4.8

(40)

1,245

riders

45

rides

Road cycling routes around Cerkniško lake traverse a unique intermittent lake landscape, characterized by dynamic hydrological cycles that transform the area from a vast lake into meadows and wetlands. The region is part of a karst landscape, featuring intriguing geological formations such as sinkholes and underground rivers. Cyclists will encounter diverse terrain, including paved roads that sometimes run directly through the lakebed, alongside surrounding forests, open meadows, and views of nearby hills. The area offers varied scenery throughout the year,…

Last updated: July 4, 2026

4.6

(5)

134

riders

#1.

Planina–Unec Road – Haasberg Castle Ruins loop from Cerknica

44.6km

01:59

400m

400m

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

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Moderate

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate
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Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.

Hard

Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.

Moderate

Moderate road ride. Good fitness required. Some segments of this route may be unpaved and difficult to ride.

Moderate
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Cycling Collection by

tristanbogaard

Tips from the Community

Peter Kosmac
March 10, 2026, View of the Water Tower

Just a few steps from the main road, the Ravbar Tower is very beautiful, and the view of the Planinska Cave and the source of the Unica River is also worth a visit.

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Storks are beautiful and you are pretty sure to see them in summer

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Big photogenic ruin, but unfortunately closed for access

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Planina Polje has a unique geological structure. Unica, is one of the best known and most scenic karst poljes in Slovenia. The meadows along the meanders of the Unica tell a story not only about the area's numerous unusual natural features, but also about the life of the local people, who adapted to the river's rhythm of flooding. Planina Polje is the meeting point of several karst waterways, and its edge is full of karst springs, ponors and swallow holes. Some of the swallow holes have been walled and covered by iron grids to prevent clogging. The best known among them are the so called 'Putick's Wells' (Putickove štirne), unique pieces of technical heritage named after the famous karst explorer Viljem Putick.

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The ruins of the old Baroque castle rise above the Unica River gorge in the southern part of the Planina Plain. The Hošperk Castle (Haasberg) was built by the Eggenberg princes at the beginning of the 17th century, at the foot of an old medieval castle that was destroyed by an earthquake. At that time, the castle was considered the most powerful Baroque castle in Slovenia. It was famous for its rich interior and beautiful park, which unfortunately is only partially preserved today. The last owner of the castle was the Windischgrätz family, who purchased it in 1846. During the Second World War, the nobles emigrated to Italy and the castle was occupied first by the Italian army, then by the German army, and in 1944 it was burned down. The valuable interior furnishings, the family archive and the family tomb of the last owners of the Windischgrätz Castle were completely destroyed.

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The ruins of Haasberg Castle, once considered one of the most beautiful Baroque castles in Slovenia and, with its valuable inventory, also one of the richest, stand near Planina pri Rakeku above the gorge of the Unica River.

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Beautiful morning to work

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Very scenic area and road, little traffic

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Frequently Asked Questions

What kind of terrain can I expect when road cycling around Cerkniško Lake?

The terrain around Cerkniško Lake is quite diverse. You'll find relatively flat sections, especially when the lake recedes and reveals its bed, allowing you to cycle directly through what is sometimes a lake. The surrounding Javornik Hills and Mount Slivnica offer more challenging routes with significant elevation gains and panoramic views, providing a mix of experiences from gentle rides to demanding climbs.

Are there road cycling routes suitable for beginners or families?

While many routes are moderate to difficult, the unique landscape offers opportunities for easier rides, particularly on the flatter sections of the lakebed when it's dry. For a family-friendly experience, consider exploring the paved roads that connect villages directly through the lakebed, such as the one between Laze pri Gorenjem Jezeru and Žerovnica, which offers a unique, mostly flat ride.

What are some notable attractions or viewpoints along the road cycling routes?

You can discover several interesting points. The Paved Road Through Cerknica Lake offers a unique experience of cycling directly through the lakebed. For nature and education, the Drvošec Educational Trail, though mostly forest, has observation points like Kuharac and Otočec tower with expansive views. For wider vistas of the lake and basin, consider routes that offer views towards Slivnica or Javorniki mountains.

When is the best time of year to go road cycling around Cerkniško Lake?

The best time to cycle depends on the lake's water levels and your preferred scenery. During drier periods, the lake recedes, revealing an expansive plain perfect for cycling directly through the lakebed. After heavy rains, the lake can expand significantly, offering a different, vast watery landscape. Spring and autumn generally provide pleasant temperatures and varied scenery, while summer can be warm but allows for cycling when the lake is at its lowest.

Where can I find parking for road cycling routes near Cerkniško Lake?

Parking is generally available in the villages surrounding Cerkniško Lake, such as Cerknica or Dolenje Jezero. These locations serve as good starting points for various routes, including loops that explore the lake's unique features and the surrounding hills.

Are there any challenging road cycling routes for experienced cyclists?

Yes, the area offers challenging routes, particularly those that venture into the surrounding Javornik Hills and Mount Slivnica. For example, the Žerovščnica Stream – Church of St. Cantianus loop from Cerknica is rated as difficult, covering 74.0 km with nearly 1000 meters of elevation gain. Another difficult option is the Winding Road at Krzisce – Rakitna Lake loop from Cerknica, which features 961 meters of ascent over 59.5 km.

What do other road cyclists enjoy most about cycling in Cerkniško Lake?

The area is highly rated by the komoot community, with an average score of 4.8 stars from over 30 reviews. Cyclists often praise the unique experience of riding through the intermittent lakebed, the diverse landscapes ranging from flat plains to challenging hills, and the rich natural environment. The dynamic hydrological cycles that transform the area offer a different experience throughout the year.

Are there any loop routes available for road cyclists?

Yes, many of the road cycling routes around Cerkniško Lake are designed as loops, allowing you to start and end in the same location. A popular moderate loop is the Planina–Unec Road – Haasberg Castle Ruins loop from Cerknica, which covers 46.0 km and offers views of historical ruins. Another longer loop is the Haasberg Castle Ruins – Cycling Path Near Velike Lašče loop from Grad Šteberk, spanning 77.1 km.

Can I find cafes or restaurants near the road cycling routes?

Yes, you can find cafes and restaurants in the main villages surrounding Cerkniško Lake, such as Cerknica and Dolenje Jezero. These towns offer opportunities to refuel and relax before or after your ride, with local establishments providing refreshments and meals.

How many road cycling routes are available in the Cerkniško Lake area?

There are over 40 road cycling routes available around Cerkniško Lake on komoot, offering a wide range of options for different fitness levels and preferences. These include routes from easy to difficult, exploring the lakebed, surrounding forests, and hills.

Is it possible to cycle through the lake itself?

Yes, it is! One of the most unique aspects of road cycling here is the ability to cycle directly through what is sometimes the lakebed when the water recedes. A paved road connects villages like Laze pri Gorenjem Jezeru to Žerovnica, running right through this extraordinary landscape. This offers a truly memorable experience, showcasing the lake's intermittent nature.

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