Notyour B.
Google
Okay, I dont know where to start...
From the parking lot, you need to take towards the restaurant and keep right hand, follow along the restaurant building walk à bit up and there is the entrance.
Tickets are 2€ as of May 2025. Basically worth it, though you have to wait for the guide, since it's a guided tour...
Well, there my critic starts, i was together with a group of turkish and spanish speaking people, later monopolizing the groupe and guide, while being on top very extrovert though selfish "shouting around", expecting others to move away for them to take pictures, behaving like the cave was there's.
In addition to this, if you can somehow avoid it, try to get there when there ain't school classes having tours. They are so badly educated, walking around, jumping, talking running, shouting... the teachers not intervening.
All in all it's a beautiful site, though your own visit is dulled due to disrespectfull behavior of others. Not to mention the trash laying around.
I would suggest, bring a headlamp.