Kaputaş is a beach that a stream built and a road exposed. The Kaputaş Stream cut a 2.76-kilometre gorge down through the karst limestone of the Taurus, falling 635 metres from the ridge to the sea, and the gravel it carried settled in the cleft at its mouth. That pocket of shingle sat unseen between two rock walls until the coast road was blasted through the cliffs between Kaş and Kalkan — work finished in 1945 that cost four labourers their lives. The colour below is not a camera trick. Rain sinks straight into the porous limestone, travels underground, and seeps out cold and fresh at the shoreline, where it meets salt water over a floor of pale stone. That is why the shallows glow turquoise, and why the sea here stays startlingly cool even in August.
Getting down is 187 steps from the roadside, and the climb back up in the afternoon heat is the part most people remember. The cove is barely wider than the gorge that made it, so shade crosses it like the hand of a clock: the walls keep the sun off the water until late morning, and only when it stands over the cleft does the turquoise reach full depth. Swim out towards the eastern wall with a mask and the pale floor falls away into deep blue. Nothing has been built here and, for now, nothing can be — Kaputaş is a first-degree protected natural site inside the Kaş–Kekova Special Environmental Protection Area, and the plan to widen the coast road above it has been fought in court for years. In winter the beach empties and the gorge behind it fills: the stream runs from January into early spring, and canyoning teams rope down its waterfalls, the tallest a 30-metre drop, before stepping out under the road bridge onto the sand.