A great place to spend a couple of hours. The rocks are unique and the way that they have been used to build a fort around them and utilise the natural defensive nature of the rocks is impressive.
Getting there is another matter, I was lucky enough to be staying with my friend in Serbia and we drove there but it is a fair way off the beaten track through miles of sparsely populated farmlands.
Once there, the trip was certainly worth it, I've not visited anywhere that is similar before or since.
There are facilities in the local town including a nice hotel and places to eat but nothing else much to see.