Ask about Agnes Cave. They're free and remote. We saw one other spelunker. Take off your shoes, roll up your pants and take a light ... not far into the middle cave you'll encounter glowworms.
Feed the eel as you eat breakfast by the stream at their home - as thick as your fist and about a meter long.
Definitely eat at the Turkish restaurant in town. I've been to Turkey several times and the food here was magically delicious. Really ... forget anything you ever ate at a local kebab shop. These guys REALLY know what they're doing.