Kaş (pronounced Kaash) is a "Turkish Delight" city in the very south (Mediterranean) of Turkey.
Kaş has several rocky (not sand) beaches but they are quite small, most are less than 10 metres wide. However the rock shelves are wonderful for sun and sea bathing. These are populated by cafes and restaurants which provide free loungers. In return you are expected (but not obliged) to buy drinks, snacks or food from them.