Postojna

Caves, Castles and Karst Wonders

Postojna is a small town in southwestern Slovenia known for its dramatic caves and lush green hills. The area features Postojna Cave, one of Europe’s largest cave systems, with underground trains that take visitors through winding tunnels filled with stalactites and stalagmites. Above ground, rolling vineyards stretch toward the horizon, producing local wines enjoyed by residents and travelers alike. The town balances quiet rural charm with modern amenities, making it a practical base for exploring nearby natural wonders without overwhelming crowds or tourist traps.

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Town in Slovenia

$$$

$	Cheap
$$	Medium
$$$	Expensive, upscale
$$$+	Very expensive, luxury

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Safety: 8.2

General Safety:	9
Health & medical:	7
Accessibility:	6
Tap water:	9

Read details

4/5

English is widely spoken in hotels, restaurants, and at tourist attractions. Guides and staff are used to international visitors, so communication is easy, though rural areas may have less English.

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Last update: 12 Oct 2026

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Postojna Summary

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Famous for vast cave systems. Ride underground trains, explore stalactite chambers and learn about unique cave wildlife.

Place score

8.1

Best at:

Natural sites

Guided tours

Caves

Castles

Walkable

Personal score

Suited for

👶 8

Families

🧓 7

Seniors

🛡️ 8

Travel Beginners

👩 8

Solo

Slovenia – Quick facts

Guide Etiquette Holidays Other

Power Grid:	230 V, 50 Hz Plug: Type C , Type F Type C: Type F: Read about power adapters
Currency:	Euro (EUR) £1 ≈ €1.19
Cashless info:	Rating 5/5 Cashless payments are widely accepted, even in smaller towns and businesses. Save with a travel credit card
eSIM providers:	Best value: Saily Flexibility: Airalo Read our in-depth comparison

Tipping:	Tipping is appreciated but not mandatory. A 5-10% tip in restaurants is common.
Public drinking:	Public drinking is restricted but tolerated during festivals.
Public smoking:	Smoking is prohibited in public indoor spaces and near entrances.

Preseren Day (February)	Cultural events and closures.
Statehood Day (June)	Parades and celebrations.
Christmas (December)	Markets and closures.

Emergency contact:	Emergency Number: 112
Taxi apps:	Bolt, Taxi Metro, Taxi Ljubljana
Other:	Slovenia is known for its stunning Alps, lakes, and charming cities like Ljubljana and Bled.

Best times to travel

The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.

Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.

Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.

Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.

Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.

for Postojna, Slovenia

❄️

Jan

❄️

Feb

⛅

Mar

⛅

Apr

🌦️

May

🌦️

Jun

⛅

Jul

🌦️

Aug

🌦️

Sep

🌦️

Oct

🌦️

Nov

❄️

Dec

High season:	June - Sep.
Shoulder season:	April - May, Oct.
Crowdedness:	8 (Very crowded)

Tap on a month for more info Hover over a month for more info

Climate details

Postojna Cave stays about 10 °C all year and is open daily, with the most tours in summer; book ahead July and August

Predjama Castle Knight Tournament, mid July

Living Nativity Scene in Postojna Cave during the Christmas period

Don't miss

🚂 Explore the stunning Postojna Cave by electric train
🏰 Visit the dramatic cliffside Predjama Castle
🐾 See the rare Proteus anguinus in underground waters
🚶‍♂️ Walk through the charming Postojna town center
🌄 Discover karst landscapes at Pivka Jama cave park

You've been here?

Why travel to Postojna?

Postojna is best known for the jaw-dropping Postojna Cave, one of Europe’s largest and most accessible cave systems. You’ll ride a unique underground train, marvel at vast halls of stalactites and stalagmites and maybe spot the rare ‘human fish’ salamander. Just a short drive away, Predjama Castle clings impossibly to a cliff, blending legend and architecture. The town itself is relaxed, with local markets, cozy cafés and a friendly arts scene. Be aware: the caves are cool year-round (around 10°C), so bring a jacket even in summer. The area gets frequent rain and summer brings crowds – book tours ahead and pack for changeable weather.

🏯Places worth seeing

1 Predjama Castle
2 Vivarium Proteus
3 Postojna Cave

🎡Places for activities

1 Planina
2 Pustolovski Park

🏞️Natural landmarks

1 Pivka
2 Planina
3 Pivka
4 Divaška jama

🎈Events

Postojna Cave Christmas Nativity
Cultural Heritage Days
Local Food Festivals
Art Exhibitions
Predjama Castle Medieval Events
Spring Flower Festival
Summer Music Concerts
Wine Tasting Evenings
Farmers’ Market Days
Outdoor Adventure Weekends

Explore on map

Open map view

Knowledge before you go

Bring a warm layer; the famous caves stay cool year-round.
Buy combined tickets for Postojna Cave and Predjama Castle in advance, especially summer weekends, to secure preferred tour times.
Arrive at the cave at least 30 minutes before departure; tours use a train plus guided walking sections.
Stay overnight in town to enjoy quieter evening streets, local restaurants and flexible timing for both cave and castle visits.

How to travel to Postojna

Postojna is easily reached by car or train from Ljubljana (about 45 minutes) and has direct road and rail links to other major Slovenian cities and neighboring countries. The nearest airport is Ljubljana Jože Pučnik Airport. Buses and trains run regularly and many visitors come on day tours from Ljubljana or the coast.

Access summary

From Ljubljana Airport (LJU): Shuttle or taxi via Ljubljana, around 1–1.5 hours.
From Ljubljana: Direct bus or train plus short walk, roughly 45–60 minutes.
From Trieste (Italy): Drive or bus across border on A1/E61, about 1–1.5 hours.

Check your route from anywhere

Where to stay in Postojna

You’ll find a range of accommodation, from hotels and guesthouses to family-run B&Bs and campsites. Many places are within walking distance of the caves or town center. Book ahead in summer, especially if you want to stay near the main attractions.

Hotel recommendations

*by rating and popularity. Commissions have no influence on the rankings.

Rooms & Apartments Proteus - Postojna Cave Park

9.0

Beautifully Designed Villa In A Perfect Location

Hotel Jama - Postojna Cave Park

9.2

Pira Hotel

Hotel Center

Explore more accommodations

How to get around Postojna

The town is compact and walkable, with main attractions a short drive or bike ride apart. Local buses and taxis connect Postojna with the caves, castle and train station. Renting a bike is a great way to explore the karst countryside. Parking is available at main sites, but can fill up in summer.

Budget snapshot

Costs compared to home

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To customise this, you can set up which location and price level are used for the calculations in your account settings.

-7 %

Daily expenses in the region are around 7% lower than the average across United States. That means you'll spend less on meals and getting around.

Exchange rate trend

The exchange rate price factor shows how expensive or cheap a currency currently is compared to its historical average. It's a quick way to see if a country is currently more or less affordable due to exchange rate changes.

-3 %

Your exchange rate (GBP to EUR) is 3% better than in recent years. That means travelling now costs around the same compared to the past.

Travel costs (Data for Trieste, Italy - 36 km away)

To help you plan your trip, we provide estimated daily costs per person (when travelling as a pair) for different travel styles. These numbers give you an idea of what you might spend each day at this destination, including accommodation, food, transport and activities.

Additionally, we also provide average hotel costs for different travel styles to give you an estimate for the accommodation only.

Please note that these are only estimates. The real costs depend on booking times, season and other factors.

Daily cost summary

Travel style categories explained:

Backpacker:
Staying in hostels or budget hotels, cooking your own meals or eating cheap and choosing low-cost activities.

Mid-range:
Staying in mid-range hotels, eating at a mix of restaurants and casual spots and enjoying a variety of activities.

Luxury:
Staying in luxury hotels, dining out at high-end restaurants and enjoying premium experiences without worrying about the price.

	Backpacker	Mid-range	Luxury
💵 Total costs per day, including accommodation	£58	£136	£374
🏨 Accommodation per night, per person	£23	£60	£150
🍝 Food per day	£29	£67	£189
🚕 Transportation per day	£6	£9	£35

Food & Drink

🍽️ Restaurant Dinner, per person	£27
🍛 Lunch Set, per person	£14
🍟 Fast food combo	£10
🍝 Preparing your own food, per day	£10
☕ Cappuccino	£1.60
🍺 Beer in a restaurant, 0.5 l	£4.70

Transportation

🚌 Public transport ticket	£1.25
🚕 Taxi Ride, 10 km / 6 mi	£22
⛽ Petrol, 1 l	£1.60

Other

🎞️ Cinema ticket	£7
👩‍⚕️ Doctor's consult	£75
🤧 Cold medication	£7.50
💇 Basic haircut	£14

Safety information overview

General safety

Postojna is very safe, with low crime rates. Usual precautions apply in tourist areas and busy sites. Take care on cave tours — paths can be wet and slippery, so wear sturdy shoes.

Health & Medical

Good medical care is available in town, with pharmacies and clinics. Bring any prescription meds. The cave environment is cool and damp, so dress appropriately to avoid chills.

Accessibility

Most main attractions, including Postojna Cave and Predjama Castle, are accessible, but some cave paths and castle areas have steps or uneven ground. Check ahead for mobility needs.

Tap water

Tap water is safe and widely available. Public fountains are found in town and at main sites — carry a bottle to refill, especially when hiking or touring.