Phaselis was a busy harbour city of ancient Lycia, founded by Greek settlers and later prosperous under Rome. What makes it special today is the setting rather than the size: the ruins lie on a small peninsula covered in pine trees, the sea is never more than a few minutes' walk away, and the mountains of the Kemer coast rise right behind it.
It is not a site where you need a guide or a whole day. You walk along the old main street, look at the theatre and the baths, then end up on a beach with clear water. For many visitors that mix of history and swimming is the main attraction, and it is why Phaselis works so well for families and couples staying on the Kemer coast.