ðnkaya Cave () is a cave located on the eastern slope of Mount Kocadaàat Yelki village in Güzelbahçe, ðzmir Province, western Turkey.
The cave is . The dry cave is developed generally horizontal and partly vertical dry cave. Potsherds found in the cave point the cave was used as a settlement in ancient times.
The cave's geological-geomorphological constitution resulted from some intersectional fractures inside a Cretaceous limestone formation. A wide hall is formed after a steep descent. It is about wide and in average high. The hall continues in an inclined gallery towards south. At the end of gallery, a -deep hole leads to the cave's lowest level and the end.