The stunning Postojna Cave has been attracting masses of tourists going back some 200 years with upwards of 36 million having visited so far. Though the vast majority of visitors see just a fraction of the massive Postojna cave system (with three additional kilometres discovered in June 2015, it’s now up to 24km in total). To escape the masses and see more of this subterranean labyrinth as well as other Karst caves, you don’t have to sneak away from the main guided tour or jump off the train, with a few days’ notice expert guides are happy to take groups of as few as two off the regular paths for customised underground adventures.
Adventure tours range in time from 1.5 hours up to 6 hours for the really adventurous, with expert guides choosing paths to match your ability and daring - team building routes are also arranged were you’ll need to work together to get through the obstacles. Visitors are given all the equipment they will need (although taking your own jumper is always a good idea), be it just a flash light for the easiest of tours where visitors can still experience the absolute darkness of the caves with only a lamp for illumination, or else full body suits, boots and helmets are provided for those going even further off the regular paths - where the real fun is to be had.
The underground adventures recreate the experience of cave exploration with visitors having the opportunity to abseil to the shores of a subterranean river - if you’re lucky you might even spot an olm or ‘human fish’ - and traverse its waters in an inflatable boat or else wade through muddy passages. Then you can discover if spelunking (caving) is really for you, as experts introduce visitors to claustrophobia inducing cracks and crevasses, which if you manage to conquer your fear and wriggle through offer access to more beautiful caverns and halls - we’re not ones for tight spaces though was a fun challenge and we definitely got a good adrenaline hit. Expert guides aren’t just there for your safety they are also a font of knowledge about the caves, pointing out peculiar formations and sharing interesting facts.
In July and August twice daily tours are also run at the Pivka and Black Caves which are actually connected to Postojna Cave courtesy of tunnels excavated by the Italians for military purposes.