Letoon

Overview: Letoon (the Letoön) was the most important religious sanctuary of ancient Lycia — the federal holy place of the Lycian League — set in the fertile Xanthos valley near Kumluova, a few kilometres south of the great city of Xanthos. Sacred to the goddess Leto and her twin children Apollo and Artemis, the sanctuary centred on three temples standing side by side, a permanently flooded nymphaeum (sacred spring), a Hellenistic theatre, porticoes, and later Byzantine churches. Letoon's fame rests above all on the Letoon Trilingual — a stone inscription in Lycian, Greek, and Aramaic that became a key to deciphering the Lycian language — and on its role, alongside Xanthos, as a UNESCO World Heritage Site. Today the half-submerged ruins, alive with frogs and terrapins, recall the very myth that made the place holy.

1. Why Letoon Matters
2. Geography and Setting
3. The Myth of Leto
4. Historical Timeline
5. The Sanctuary of the Lycian League
6. The Three Temples
7. The Apollo Temple Mosaic
8. The Letoon Trilingual Inscription
9. The Nymphaeum and Sacred Spring
10. The Theatre
11. The Stoa and Other Structures
12. The Byzantine Churches
13. Letoon and Xanthos: A UNESCO World Heritage Site
14. The Watery Sanctuary
15. Archaeological Work
16. How to Visit Letoon
17. FAQ
18. Sources

Why Letoon Matters

Letoon is significant for several compelling reasons:

• The federal sanctuary of Lycia: Letoon was the central religious and political meeting place of the Lycian League, the most sophisticated federal state of the ancient world
• The Letoon Trilingual: A trilingual inscription in Lycian, Greek, and Aramaic that is one of the most important documents for the study of the Lycian language
• Three temples together: The rare sight of three temples — to Leto, Artemis, and Apollo — aligned side by side in a single sacred precinct
• A living myth: The permanently flooded sanctuary, full of frogs, directly evokes the legend of Leto and the herdsmen turned into frogs
• UNESCO World Heritage: Inscribed together with neighbouring Xanthos in 1988 as an outstanding record of Lycian civilization
• An unbroken cult site: From a local nature cult through Greek and Roman religion to Byzantine Christianity, Letoon preserves layers of sacred history in one place

Geography and Setting

Letoon lies on the floor of the lower Xanthos valley, close to the sea.

Location:

• Near the village of Kumluova, Seydikemer/Fethiye district, Muğla Province
• About 4 km south of Xanthos, the chief city of Lycia
• A short distance inland from the Mediterranean coast near Patara and the Xanthos river mouth
• Set among greenhouses and farmland on the fertile alluvial plain

Landscape:

• Flat, low-lying ground with a very high water table
• The sanctuary's lower areas are permanently flooded, forming reedy pools
• Surrounded by the rich agricultural land of the Xanthos delta
• Frogs, terrapins, and waterfowl inhabit the watery ruins

Climate:

• Mediterranean: hot dry summers, mild wet winters
• The damp ground keeps the site green and full of wildlife
• Summers are hot; spring is lush and pleasant

The Myth of Leto

Letoon takes its name and sanctity from the goddess Leto, whose legend is set on this very spot.

• Leto, pregnant by Zeus, fled the jealousy of Zeus's wife Hera
• Wandering through Lycia, she came to a spring to drink and to wash her newborn twins, Apollo and Artemis
• Local herdsmen drove her away and muddied the water; in punishment they were turned into frogs, condemned to croak forever in the marsh
• According to one tradition, wolves (Greek lykos) guided Leto to the spring — giving Lycia its name
• Grateful, Leto made the spring her sanctuary, and the Lycians honoured her as their national mother-goddess
• The frogs that still fill the flooded ruins make the myth vividly present to every visitor

Historical Timeline

The Sanctuary of the Lycian League

Letoon was not merely a temple but the federal sanctuary of the Lycian League (Koinon of the Lycians).

• The Lycian League was a federal state of independent cities that pooled sovereignty — admired by later thinkers (and cited by the framers of the U.S. Constitution) as a model of representative federalism
• Letoon served as the religious heart of this federation, where the cities gathered for shared festivals and ceremonies
• Major decisions, dedications, and honours were proclaimed here, in the presence of the national goddess
• The Letoia, a festival with games, was celebrated at the sanctuary
• This fusion of religion and politics made Letoon the spiritual capital of Lycia, complementing the political weight of Xanthos

The Three Temples

The core of Letoon is its row of three temples, excavated side by side.

Temple of Leto (west):

• The largest of the three, built in the Ionic order
• Dedicated to Leto, the mother-goddess and patron of the sanctuary
• Substantially reconstructed on paper from its fallen blocks; its plan is well understood

Temple of Artemis (centre):

• The smallest, central temple
• Dedicated to Artemis, Leto's daughter
• Of simpler plan, it may have incorporated a natural rock outcrop within the cult

Temple of Apollo (east):

• Dedicated to Apollo, Leto's son
• In the Doric order
• Famous for a floor mosaic depicting Apollo's symbols (see next section)

The deliberate grouping of the divine family — mother and twins — in three adjacent temples is one of the most distinctive arrangements in Anatolian religious architecture.

The Apollo Temple Mosaic

The Temple of Apollo preserves a remarkable floor mosaic.

• The mosaic depicts the attributes of Apollo and Artemis: a lyre (Apollo's instrument), a bow and arrow (shared by both deities as archers), and a central rosette
• It is among the earlier surviving figural pavements in the region
• The imagery encodes the identities of the temple's gods in symbols rather than figures
• The mosaic confirms the eastern temple's dedication to Apollo

The Letoon Trilingual Inscription

Letoon's single most celebrated find is the Letoon Trilingual, a stele inscribed in three languages.

• Dated to about 358 BC, in the reign of the Persian satrap Pixodaros
• Written in Lycian, Greek, and Aramaic — the three administrative and cultural languages of the region under Persian rule
• It records the establishment of a cult for a Carian god (Basileus Kaunios, the "King of Kaunos") and an associated deity, with regulations and penalties
• Because the same text appears in the well-known Greek alongside the poorly understood Lycian, the stele has been a fundamental key to deciphering the Lycian language
• It is one of the most important epigraphic documents from ancient Anatolia, now studied worldwide

The Nymphaeum and Sacred Spring

At the heart of Letoon lies the nymphaeum — a monumental fountain built over the sacred spring of the Leto myth.

• A Hellenistic and Roman fountain complex enclosing the holy water source
• Today it is permanently flooded, its pools full of water, reeds, frogs, and terrapins
• The standing water makes excavation difficult but powerfully evokes the original sacred spring
• The nymphaeum was the mythological focus of the whole sanctuary — the very water Leto sought
• Its semicircular and rectangular basins are partly visible beneath the surface

The Theatre

A well-preserved Hellenistic theatre stands at the northern edge of the sanctuary.

• Built into a low natural slope in the 2nd century BC
• A large semicircular cavea with most of its seating rows preserved
• Two vaulted entrance passages (parodoi); one is decorated with carved theatrical masks
• Used for the religious festivals and assemblies of the Lycian League
• One of the better-preserved theatres of the Xanthos valley

The Stoa and Other Structures

Around the temples and spring lay the supporting buildings of a great sanctuary.

• A long stoa (portico) bordered the sacred precinct, sheltering pilgrims and visitors
• Foundations of priestly buildings, altars, and dedications fill the precinct
• A monumental entrance and processional approach linked the sanctuary to its surroundings
• Numerous inscriptions and statue bases attest to centuries of dedications

The Byzantine Churches

In the Christian era, Letoon — like many pagan sanctuaries — was given a church.

• A large basilica was built within the sanctuary in the early Byzantine period (5th–6th century)
• Its construction marks the end of the pagan cult and the Christianization of the holy site
• Mosaic and architectural fragments from the church survive
• The placement of a church among the temples follows the common practice of overwriting older sacred ground with Christian worship

Letoon and Xanthos: A UNESCO World Heritage Site

Letoon is inseparable from neighbouring Xanthos, and the two were honoured together.

• In 1988, "Xanthos–Letoon" was inscribed on the UNESCO World Heritage List
• The pairing reflects their ancient relationship: Xanthos the political capital, Letoon the religious sanctuary
• Together they preserve an unmatched record of Lycian civilization — its language, religion, art, and federal institutions
• The inscription recognizes the unique blend of Lycian, Greek, and Roman culture embodied in the two sites

The Watery Sanctuary

One of Letoon's most memorable characteristics is its flooded condition.

• The high water table of the Xanthos delta keeps the lower sanctuary under water year-round
• The nymphaeum and parts of the temple terraces stand in reedy pools
• Frogs, terrapins, and waterbirds thrive among the ruins
• The flooding is both a challenge for archaeologists and a poetic echo of the Leto-and-the-frogs myth
• Visitors often remark that no site dramatizes its founding legend more literally than Letoon

Archaeological Work

Letoon has been excavated principally by a French archaeological mission.

• Systematic excavation began in 1962 under the French Institute of Anatolian Studies, led by Henri Metzger and colleagues
• The mission uncovered the three temples, the nymphaeum, the theatre, and the Trilingual stele
• Study of the Trilingual transformed knowledge of the Lycian language
• Conservation works contend with the constant flooding of the site
• Research continues on the sanctuary's architecture, inscriptions, and history

How to Visit Letoon

Getting there:

• Near Kumluova, about 4 km south of Xanthos, Seydikemer/Fethiye district
• From Fethiye: about 60–70 km (roughly 1–1.5 hours) toward Kınık/Kumluova
• From Patara or Kalkan: a short drive along the coast
• Best reached by car; signposted from the Xanthos–Patara road

The site:

• Allow 1–1.5 hours; easily combined with Xanthos (4 km) and Patara nearby
• Key sights: the three temples, the flooded nymphaeum, the theatre, and the (replica) Trilingual
• Paths can be wet and muddy near the nymphaeum — appropriate footwear helps
• Entry fee required; basic facilities

Best time to visit:

• Spring (March–May) is ideal — green, full of wildlife and birdsong
• Autumn is also pleasant
• Summer is hot; visit early or late in the day

Practical tips:

• Combine Letoon with Xanthos, Patara, and Pınara for a full Lycian-valley day
• Listen for the famous frogs — the myth made audible
• The original Letoon Trilingual is conserved in a museum; the site displays its context
• Bring insect repellent in the warm months because of the wetlands

Site Data

FAQ

Q: What is Letoon? A: It was the central religious sanctuary of ancient Lycia — the federal holy place of the Lycian League — dedicated to the goddess Leto and her children Apollo and Artemis, located near Xanthos.

Q: Why are there frogs everywhere? A: The sanctuary is permanently flooded, and frogs fill its pools — a striking echo of the myth in which herdsmen who denied Leto water were turned into frogs.

Q: What is the Letoon Trilingual? A: A stone inscription of about 358 BC written in Lycian, Greek, and Aramaic. Because the Greek version translates the Lycian, it has been essential for deciphering the Lycian language.

Q: Why are there three temples? A: They honour the divine family worshipped here together — Leto (the mother) and her twins Apollo and Artemis — set side by side in one sacred precinct.

Q: Is Letoon a UNESCO site? A: Yes. It was inscribed on the UNESCO World Heritage List in 1988 together with neighbouring Xanthos, as "Xanthos–Letoon."

Q: How is Letoon related to Xanthos? A: Xanthos was the political capital of Lycia and Letoon its religious sanctuary, just 4 km away. The two functioned as a pair and are protected together.

Q: Can I combine Letoon with other sites? A: Yes. It is ideally combined with Xanthos (4 km), Patara, and Pınara for a full day exploring the Lycian Xanthos valley.

Sources

• Metzger, Henri et al. Fouilles de Xanthos and the Letoon excavation reports (French Archaeological Mission)
• Bryce, Trevor R. The Lycians in Literary and Epigraphic Sources
• Keen, Antony G. Dynastic Lycia
• The Letoon Trilingual inscription — editions and commentaries (Lycian, Greek, Aramaic)
• UNESCO World Heritage Centre, "Xanthos-Letoon" (inscribed 1988)
• Bean, George E. Lycian Turkey: An Archaeological Guide
• Republic of Türkiye Ministry of Culture and Tourism — Muğla/Lycia cultural heritage