Köprüçay, ancient Eurymedon is a river that is situated in Antalya Province, Turkey, and empties into the Mediterranean.
At its mouth, in the 460s BC, the Athenian general Cimon defeated a large Persian force of ships and men moving westwards. The two land and sea battles lasted one day and included Cimon's capture or destruction of the entire Phoenician fleet of 200 triremes.
In 190 BC, a Roman fleet led by Lucius Aemilius Regillus defeated the Seleucid fleet of Antiochus III the Great, led by Hannibal, near the river.
Wikipedia https://en.wikipedia.org/wiki/Köprüçay_River
Coordinates 36°56'14.814" N 31°10'32.115" E