I wonder why it is recommended in their website to visit Predjama Castle first? Postojna has a schedule tour to catch and I prefer to do the scheduled tour first then roam free in Predjama Castle afterwards without having to look at the time for the tour.
I also want to leave my luggages with them which the Postojna Cave are willing to do that. I wonder if Predjama ticket office could do the same.
Also, in the end of Postojna Cave tour, could you see the olm? or you could only see them in the Vivarium? I read reviews that at the end of the Cave tour, inside the cave the guide pointed out to olms??