Köprülü Canyon National Park

In Manavgat district of Antalya Province, near the village of Beşkonak.
Its deep canyon, white-water rafting, and the Roman Oluk Bridge.
Mostly during the spring and summer months (April to October), when water levels are ideal.
Wild goats, eagles, trout, and various bird species are common.
No general entrance fee, but activities like rafting are paid through local tour providers.