By car you can reach the Postojna Cave Park via the A1 motorway from Ljubljana, Koper or Trieste (Postojna motorway exit No. 41, which is two km from the Park). Postojna is almost the same distance from Ljubljana, Portorož, Rijeka and Trieste. The journey to Postojna from Rijeka or Ljubljana takes less than an hour, from Venice and Zagreb about two hours and from Salzburg, Vienna, Budapest, Dubrovnik or Belgrade only a few hours.

Arriving by train, you get directly to the town of Postojna, from where you can take an approximately 25-minute walk to the Postojna Cave Park. Postojna is on the Vienna-Venice railway line with connections to Zagreb, Salzburg, Rijeka and Koper. Check the timetable..

Bus: More intercity bus connections are available via the Postojna bus station in the town centre, including hourly buses from Ljubljana to Postojna.

A local bus runs between Postojna Railway Station, Postojna Bus Station and Postojna Cave Park.

The closest airports are in Slovenia's capital Ljubljana, in Italy (Trieste, Venice and Milan) and Croatia (Zagreb, Rijeka and Pula).

The Predjama Castle is about nine kilometres from the entrance to Postojna Cave. Visitors with tickets to Postojna Cave and the Predjama Castle can use the shuttle service between the Postojna Cave Park entrance and the Predjama Castle, which is available part of the year. Taxi rides can be arranged at the ticket office.