Don't just wander the surface of the earth — investigate what's below it too. See curious natural formations and shapes in the deep, dark recesses of Gokgol Cave.
This natural underground attraction in Zonguldak is popular with travelers, so make sure it features on your to-do list. Don't think that's all there is to do here, though. There are plenty more attractions ready for you to experience after Gokgol Cave. Bulent Ecevit University, Demirpark Shopping Center, and Saklıbahçe Değirmenağzı Plajı are nearby.