The mine itself is really impressive, up to 135m down with some pretty spectacular creations, but for me, the negatives equalled the positives.
Price of concession ticket was 60 (student - make sure you are under 24)
We didn't buy a tour ticket as its only 5 stops on a bus from Market square which costs 4 zloty. There was no queue for admissions when we got there. But... We had to wait an hour for admission as there are so many people.
Our guide, unfortunately, was terrible. Her English was so limited, I literally learnt nothing. We seemed to simply wander aimlessly from one chamber to the next knowing nothing about what we were looking at. And as there are so many people there, you are quickly rushed from each chamber by the following tour.
It's also an extra 10 zloty to take photos, although its so dark inside you need a good camera to get decent pictures.
And one last thing, expect to walk... And wait... And queue. If you don't like doing that, I wouldn't recommend it, but for a rainy day in Krakow, it's okay.More