About 18 kilometers southeast of Side, near the small town of Cevizli, budding spelunkers can explore one of the deepest cave networks in Turkey. 

The Düdencik Caves here head 330 meters down into the earth. One of the underground rivers inside the network emerges as a karst spring near Pamukluk Köprüsü.

For real cave enthusiasts, another cave complex is farther southeast. The Düdensuyu Magarasi cave complex lies next to the village of Akseki. A number of underground lakes here can be visited with a local guide.