Zeleni kras - Green Karst
Discover the karst underground by bike on a scenic circular route connecting caves, disappearing rivers, forests and picturesque villages of Postojna Region.
Author’s recommendation
Derived from the technical difficulty and the stamina requirements.
Track types
Rest stops
Predjamska GostilnicaRestaurant Proteus
Safety information
The route combines asphalt roads, gravel roads and forest tracks and is best suited to mountain bikes. Some gravel sections can become loose or slippery after rain. Take extra care on descents and when cycling on public roads, particularly near Predjama during the main tourist season.Tips and suggestions
Plan your ride around the opening hours of the caves if you wish to include a guided visit.Roadbook
The route begins at the Sustainable Mobility Centre in Postojna. You will soon leave the town behind and head towards Postojna Cave. You can either stop and visit the cave or continue cycling and climb the Sovič Hill even before reaching the Postojna Cave Park.
A gravel road leads to Otok Cave, which is connected to Postojna Cave through an underground network of passages, and then to the main road between Postojna and Predjama. Cross the road carefully and continue along a gravel track. The route then takes you through several villages in the Postojna region: Zagon, Hrašče, Hrenovice, and Landol. This section is mostly flat and follows quiet, low-traffic roads.
A short climb and descent then lead to Predjama, dominated by the magnificent Predjama Castle, with another cave located directly below it. You can make a stop here for some food and drinks at Požar Inn or tackle the ascent to Bukovje and continue towards Belsko. The longest ascent of the route begins there, passing through the villages of Studeno, Strmca, and Lohača before descending to Pivka Cave and Black Cave. Located only a few hundred metres apart, both caves are a part of the Postojna Cave system. The route comes to an end with a diverse final section back to Postojna, passing the pump track before reaching Ljubljanska Street and continuing past Hotel Kras to the starting point.
Otoška jama/Otoška Cave
Arheološko najdišče Betalov spodmol
Lipizzaner Lodge
Predjama Castle
Predjama Castle
Predjamska Gostilnica
Belsko
Studeno
Lohaca
Pivka jama
Črna jama/Black Cave
Notranjski muzej Postojna
Restaurant Proteus
Public transport
Public-transport-friendly
The route starts and finishes in Postojna, which is easily accessible by train and regional bus services. From the railway and bus stations, you can reach the starting point by bicycle within a few minutes. If you are travelling with your own bicycle, we recommend checking in advance whether your selected train or bus service allows bicycle transport, as this may vary depending on the operator, route and departure.Directions
By car: Postojna lies directly beside the A1 motorway connecting Ljubljana and the Slovenian coast. Several public parking areas are available in and around the town centre.By bicycle: Cyclists can reach Postojna via regional roads from the directions of Planina, Pivka, Razdrto and Cerknica. The town is also connected to several long-distance cycling routes across the Green Karst region.
Parking
Several public parking areas in Postojna are free of charge. A few parking spaces are also in front of CTM Postojna.Coordinates
Equipment
A mountain bike is recommended, as much of the route follows gravel and forest roads. Bring sufficient drinking water, snacks, a basic repair kit, a charged mobile phone and weather-appropriate clothing. Wearing a helmet is strongly recommended.Human-created
Derived from the technical difficulty and the stamina requirements.

User Questions