From the main road it reads as snow, a white slope stopped halfway down a green Anatolian hill, and it takes a second look to understand that nothing up there is cold. Pamukkale means cotton castle, and the name is the only soft thing about it. The white is stone. A whole hillside of stone, poured in shelves and scalloped basins and shallow pools of water so blue it looks tipped in from a tin. I had seen it in a hundred photographs. I stopped walking anyway.
The stone is travertine, and the hill is still making it. Hot springs rise through the rock carrying dissolved calcium, and as the water spills out and cools it lets the mineral go, laying it down over the lip of each pool a fraction of a millimetre at a time. Everything you stand on up here was once moving water. Left alone, over a few human lifetimes, these terraces will be a little wider and a little deeper, built by nothing but the spring and gravity and a great deal of patience.
You go up barefoot. Shoes come off at the bottom, partly out of respect and mostly because grit and hard soles wear the surface away, so the whole climb is made on warm, faintly ridged stone with the spring water running over it ankle deep. It is a strange sensation, half beach and half cathedral. The route is roped to a single channel that lets the rest of the hill keep growing, and the crowd thins the higher you get.
The water is the point, and it is warm. The springs come out of the ground at around body heat, and in the wider basins people lower themselves in and go quiet, chins above a sheet of pale blue, the whole valley falling away below. I sat in one for a long time. Roman patients were sent to soak here two thousand years ago for exactly this, and half an hour in it is not hard to see why the cure caught on.
Because there is a city on top. Climb to the summit and the terraces give way to Hierapolis, a spa town the Romans built around the same springs, and it is enormous. Colonnaded streets, a bath complex the size of a basilica, and a theatre cut into the hillside with its stage still standing. People came to take the waters, and a great many who did not get better stayed on for good, ranked up the slope in one of the largest ancient cemeteries in Turkey.
The strangest swim is near the centre, in what everyone calls the antique pool, a warm spring-fed bath scattered with fallen marble columns that an earthquake tipped in centuries ago. You get in and float over them, fluted Roman stone on the bottom, small bubbles rising past your legs from the vents below. It should feel like a theme park and somehow never does. The water has been doing this longer than the ruins have been ruins.
Everything you stand on up here was once moving water.
Come at the very start of the day or the very end of it. Midday is white glare and full car parks and heat with no shade anywhere on the bare stone. The last hour is the one to have: the sun drops, the terraces run pink and then gold, the tour buses pull out, and for a while the cotton castle is nearly empty and entirely yours. I left in the near dark with wet feet and the rare, specific satisfaction of a place that had somehow lived up to its own photographs.
