PirOlympos is the second most important harbour city after Phaselis on the southern coast of Antalya. The city takes its name from Mount Tahtalı, one of the western extensions of the Taurus Mountains 16 kilometres to the north, with a height of 2,375 metres. It is within the borders of Beydağları-Olympos National Park. Although the exact date of foundation is unknown, Olympos, mentioned in the Lycian Union coins minted in 167-168 BC, is one of the six cities with three voting rights in the Lycian Union.