interior and gradually deepens. Once you cross the lake on boat you come to a travertine wall, 44-meters in height, with stalagmites, stalactites and travertines. The rest of the cave is for the experts to discover. On the upper section of the Manavgat valley, near the village of Cevizli, is the Düdencik Cave. Its entrance is like a deep dark well. The adventure starts  with a road that descends 330-meters underground. One of Turkey's deepest caves, it has seven vertical falls varying between