To the west, rest of Pamphylia offers many interesting destinations.
To the east, Anamur, Silifke, and the rest of eastern Mediterranean coast the Cilician coast: Cilician Mountains, Cilician Plains, and Hatay awaits with its somewhat thinly populated and thinly touristed hilly landscape.
Cyprus, lying to the southeast, is also another option. During the high season May to September, you can go to Kyrenia in Northern Cyprus by boat through the company Fergün Shipping (http://www.fergun.net/uk/). It takes about 3 and a half hours and costs 78 TL/person one-way or 130 TL/person return. Outside the high season, the international port is closed.