About 5km southwest of Demre's centre is the seafront settlement of Çayağzı, called Andriake by the Romans at a time when the port was an important entrepot for grain on the sea route between the eastern Mediterranean and Rome.
The ruins of ancient Andriake are strewn over a wide area to the north and south of the access road approaching Çayağzı. The great granary built by Hadrian and completed in AD 139 lies in the southern section.
Much of the land is marshland so the ruins (including the granary) can be difficult to reach in wet weather. In 2009 the ruins of the first synagogue found in ancient Lycia were uncovered here.
Dolmuşes run sporadically out to Çayağzı; your best bet is probably a taxi (₺15).