Letoon or Letoön is located south of the Turkish town of Xanthos, about an hour's drive from Fethiye. It was the main sanctuary of the Lycian League. In Greek and Roman mythology, it is considered the place where the story of the Lycian peasants took place. When the goddess Leto with her children Apollo and Artemis, exhausted and fleeing from Hera, wanted to drink water at a spring here, she was chased away by peasants who turned them into frogs as punishment.

The place never became a real settlement, but remains a religious center. At the end of the sixth century BC. Letoon arises as a sanctuary for the mother goddess. Today you can visit the remains of three temples dating from the fifth to the first century BC. There is also a theater from Hellenistic times. The sanctuary continued to be used into Roman times and became the site of a church built from stones from the sanctuary. Finally, the place was abandoned in the seventh century.

In 1962, the archaeologist Metzger dedicated the Hellenistic temple to Leto and her children Artemis and Apollo. Archaeologists have uncovered many of the remains and made interesting finds, including the Letoon Trilingual Stele. This stele with three languages (Lycian, Greek and Aramaic) can now be admired in the Fethiye Museum and has played a crucial role in the decipherment of the Lycian language.

If you are interested in ancient Greek and Roman history, this place is definitely worth a visit.