Frenk Bay is the deepest and coldest part of the region. It is 15 minutes away Kalkan from the sea. Thesource water flows from theToros Mountains to the bay, there by it is reducing the heat of the sea. In the hottest time of summer, this cove can create a shock effect on humans’ body. There are also aqueducts of Lycian Civilization in the depths of Frenk Bay.