They're both on the road into Kaya from Hisaronu. Cin Bal is the first that you'll see on the right. There are 2 entrances, so if you miss the first one the other is about 200 metres later. The entrance to Oba Kebab is a further 250 metres towards the village and is signposted on the right, down Eski Okul Sok.
If you're using the dolmus to get there just ask the driver to drop you at whichever one you want. He'll understand.