Postojna Cave

Postojna Cave, at Jamska cesta 30 in Postojna, Inner Carniola, is among the most visited show caves in Europe and lies about 53 km southwest of Ljubljana. The trip takes roughly one hour by train, coach or car. Slovenske zeleznice trains run from Ljubljana station to Postojna in 55-70 minutes for about EUR 6, and Arriva coaches cost EUR 6-7. From Postojna station the cave entrance is a 1.5 km walk uphill of about 20 minutes, or a short taxi ride. Drivers take the A1 motorway to the Postojna exit, about 45 minutes, and use the large car park at the cave. The standard visit covers about 5 km, starting with an electric train ride deep into the cave, followed by a guided walk through vast halls, past stalactites, stalagmites and the famous white Brilliant formation. The cave temperature stays around 8-10 C all year, so a jacket is needed even in summer. The adjoining Vivarium shows the olm, or proteus, a blind salamander unique to the Dinaric karst. Tickets cost about EUR 33-35, and timed tours run on a schedule that can be checked on the official website. A sensible one-day arc is to catch a morning train, reach the cave for a late-morning tour, eat lunch at the cave park restaurants or in Postojna town, and spend the afternoon at the nearby Predjama Castle, 9 km away, using a combined ticket that saves around a quarter. Without Predjama, the cave alone takes two to three hours including the Vivarium and transport. April to October is the most comfortable window for walking to the cave and combining it with other sights, although the cave itself is open year-round. Mid-morning departures avoid the busiest coach tour times. Round-trip transport costs about EUR 12-14, and organised combined tours with Predjama are priced at EUR 55-85. Food is available at the visitor complex, with more affordable choices in Postojna centre.