The Letoon, sometimes Latinized as Letoum, was a sanctuary of Leto near the ancient city Xanthos in Lycia. It was one of the most important religious centres in the region. The site is located south of the village Kumluova in the Fethiye district of Antalya Province, Turkey. It lies approximately four kilometres south of Xanthos along the Xanthos River.
Lower Agora (Roman Period), Ancient City of Xanthos, Kinik Village, Kas, Antalya.
Xanthos was the name of a city in ancient Lycia, the site of present-day Kinik, Antalya Province, Turkey, and of the river on which the city is situated. The ruins of Xanthus are on the south slopes of a hill, the ancient acropolis, located on the northern outskirts of the modern city, on the left bank of the Xanthus, which flows beneath the hill.