Last summer we took a tour called Jeep Safari To Zeus Cave And Dilek National Park and it was CRAZY! We had to climb over a fence and down a rocky incline to get to the Zeus Cave, which was dark, much deeper than it looked, freezing, and a marvelous experience. There were many stops and it was beautiful. The jeeps chased each other in circles, there were multiple water fights, it was something else. I think the best part was when the driver poured cold water down my sister's back (during a water fight) and instead of getting upset, she marvelled at what it was like to be an Israeli getting teased by a Turk. If you are into off-beat experiences, I highly recommend this one. We got it from Viator, if I am not mistaken. And they got us back to the ship on time, even with a beach stop at the end.