Križna Cave
Križna Cave at a Glance
| Country | Slovenia |
| Setting | Karst cave in the Lož Valley |
| Known for | 22 underground lakes and cave-bear archaeology |
| Best time | May–October for guided tours; the cave is closed November–April |
Why Visit Križna Cave
Križna Cave is a carefully preserved karst system with emerald underground lakes, narrow passages, and a limited guided experience in the Lož Valley.
The cave-bear remains, underground boat ride, and Bloke Plateau landscape make it a specialist nature and geology visit rather than a conventional show cave.
Overview
The cave is 8,275 metres long and contains 22 underground lakes. The standard tour lasts about 1.5 hours over 1.5 km and includes a boat ride; the extended tour lasts about 3 hours over 3 km by prior arrangement.
The cave stays at 8°C. The page dates the guided-tour season from May to October and notes a limit of 6–20 people per tour.
Best Things to Do in Križna Cave
Križna Jama (Cross Cave) is one of the most pristine and best-preserved karst cave systems in Europe, famous for its emerald-green underground lakes. Located in the Lož Valley near the village of Bloška Polica, 30 km south of Cerknica, the cave stretches over 8,275 metres in length and has 22 underground lakes connected by narrow passages. What makes Križna Cave exceptional is its almost untouched condition — very few caves in Europe allow visitors to see such pristine formations in their natural state. The cave was formed by the Bloke Creek (Bloščica), which still flows through the system, maintaining the delicate ecology.
Exploring Križna Cave: Top Attractions & Hidden Gems
The first written records of the cave date to 1832, but its most famous discovery came in 1926 when archaeologists found remains of the cave bear (Ursus spelaeus) — over 7,000 bones have been uncovered, making it the richest cave bear site in Slovenia. The cave's most remarkable feature is the labyrinth of emerald lakes, whose crystal-clear waters reveal stalactites, stalagmites, and flowstones beneath the surface. The largest lake, 'Malo jezero' (Small Lake), has an eerie beauty with perfect reflections of the cave formations. The cave is open only for guided tours, with strict visitor limits to protect the fragile environment (maximum 2,000 visitors per year — just 6-20 per tour).
Local Culture & Food in Križna Cave
The standard tour (1.5 hours, 1.5 km) includes a boat ride across several underground lakes. The extended tour (3 hours, 3 km, by prior arrangement) takes you deeper into the system. The cave maintains a constant 8°C — bring warm clothes regardless of the season. The surrounding Bloke Plateau is a beautiful, sparsely populated area of forests, meadows, and traditional wooden architecture.
🗓 Best Time to Visit
The cave is open May-October only for guided tours (closed November-April due to high water levels). May-June and September-October offer the most comfortable conditions for the drive and walking. July-August brings more visitors, but the strict limit of 6-20 people per tour means it never feels crowded. Spring (May) has the highest water levels and the most dramatic lake views. Autumn (September-October) has lower water but clearer reflections. Book tours at least 4 weeks ahead in July and August.
🍽 Food & Drink
There are no restaurants directly at the cave — the nearest options are in Cerknica (12 km) and Lož (5 km). The tourist office in Lož can recommend local tourist farms that serve traditional Notranjska meals. Pack a picnic — the Bloke Plateau is a lovely spot for outdoor eating. The area is known for jota (€8-10), game dishes (€12-16), and wild blueberry desserts (€4-6).
🚗 How to Get to Križna Cave by Bus, Car & Boat
By car: 30 minutes from Cerknica (20 km), 1 hour from Ljubljana (75 km) via the A1 to Unec then south through Cerknica. The last 5 km to the cave entrance is a narrow country road — drive slowly. Free parking at the cave. No public transport directly to the cave. The nearest bus stop is in Lož (5 km away), served by buses from Cerknica and Ljubljana — then a taxi (€8-10) or a walk. By bike: The Bloke Plateau has quiet country roads suitable for experienced cyclists (45 km from Cerknica).
🥘 Where to Eat in Križna Cave: Authentic Local Cuisine
No restaurants at the cave itself — the nearest proper dining is in Cerknica (12 km). Gostilna pri Lojzetu (Dvorska vas 50, Cerknica, €15-25 mains) is the closest high-quality option and worth the drive. For basic pub food and drinks, the Gostilna Turšič in Lož (5 km, mains €7-10) serves traditional lunch. Pack a picnic — the Bloke Plateau has beautiful picnic spots. Takeaway pizza from Cerknica (Pizzeria Tri Zvezdeice, €6-9) is a practical option.
🏨 Best Hotels Near Križna Cave
The nearest accommodation is in Cerknica (12 km north, see Cerknica section). Tourism farm Pri Močilniku in Lož (€50-65/night with breakfast, 5 km from the cave) is the closest option. The tourist farm Pr' Pice (€55-75/night, Jezero 11) in the Cerknica area also offers access to the cave. For a unique stay, the Koča na Blokah mountain hut (€25-35 per person, basic but atmospheric, 3 km from the cave) provides forest accommodation. There is no luxury accommodation near the cave.
Find a stay in Križna Cave
Compare apartments, guesthouses, and vacation rentals while you finalize your route. Flexible cancellation can help when drive times or border plans change.
Browse stays in Križna Cave on Vrbo →Accessibility
- Križna Cave requires a guided underground visit with walking, narrow passages, and a boat ride. The page does not guarantee step-free access or suitability for every mobility need; contact the operator about the exact route before booking.
- Bring warm clothing regardless of the season because the cave remains at 8°C. Confirm tour availability, group size, water conditions, and meeting arrangements.
- The surrounding Bloke Plateau is sparsely populated, so plan transport and facilities rather than relying on an urban service network.
Common Mistakes
- Arriving outside the May–October guided-tour season when the cave is closed November–April.
- Entering in summer clothing despite the constant 8°C cave temperature.
- Assuming the standard tour is a simple dry walk when it includes a boat ride and narrow passages.
- Planning the extended tour without arranging it in advance.
Photography
- Follow the guide’s instructions and never use a flash where it could affect the cave or group.
- Use the underground lakes, boat, and narrow passages to show the experience without leaving the route.
- Photograph the Bloke Plateau and traditional architecture outside for a contrast with the cave interior.
- Slovenia regulates drones — check current registration and flight rules with the Civil Aviation Agency of the Republic of Slovenia before flying.
Etiquette
- Follow the guide’s safety and conservation instructions.
- Do not touch formations, fossils, cave-bear remains, or lake water.
- Keep the group together in narrow passages.
- Ask before photographing guides or other visitors.
- Carry all waste back out of the cave.
Frequently Asked Questions
What is special about Križna Cave?
Križna Cave has 22 emerald-green underground lakes that visitors explore by boat — one of only a handful of caves in Europe offering this experience. It's also exceptionally pristine with strict visitor limits (max 2,000 people per year) to protect the delicate formations, and it's a major cave bear fossil site.
How do I book a tour of Križna Cave?
Tours must be booked through the Cerknica or Lož tourist office (call +386 1 709 3660 or email info@notranjska-park.si). Standard tours cost €20/adult, last 1.5 hours, and include a boat ride. Extended tours (€30, 3 hours) go deeper into the system. Book at least 4 weeks ahead for summer months — tours are capped at 20 people.
Is Križna Cave suitable for children?
The standard tour (1.5 hours, 1.5 km) is suitable for children aged 6+ who can handle walking on uneven surfaces in a cool, damp environment (8°C). Children under 5 are not permitted. The extended tour (3 hours) involves some crawling and is not recommended for under-12s.
Can I visit Križna Cave and Cerknica Lake in one day?
Yes — they're just 15 minutes apart by car. Start with the morning Križna Cave tour (9am or 10am slot — book the earlier one), have lunch at a tourist farm in the Cerknica area, then spend the afternoon exploring Cerknica Lake. It's one of the best day trips from Ljubljana for nature lovers.
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