Much of the Gökova plain had been unproductive for centuries, until the later half of the 20th century, and was covered with marshlands ridden with malaria. The inhabitants abandoned their settlements and fields entirely during the months of active malaria and moved to highland plateaus (yayla). The arable land available was usually owned by large landowners from the district center of Ula. An organized program to combat malaria, one of the priorities of the young Turkish Republic of the 1920s, was enacted under a specific law in 1926, in the frame of which ownership titles were awarded to individuals or groups of people on the basis of the swampland they drained, and were quite successful in the transformation of Akyaka region, especially through the local projects lasting from 1925 to 1940. In the following decades, conversion of fields for cash crops, particularly tobacco, dominated the local economy and this until the 1970s when the first steps in the tourism industry were taken. Akyaka became quite cosmopolitan in recent years.
Idyma
Safe altitude considerations governed the choice for settlements of the ancients as well. Gökova town, inland from Akyaka was the location of the historic city of Idyma, some of whose remains reaching back at least to the 4th century BC, when it was founded as a Carian city, are still visible. Idyma urban zone may have extended as large as the area between the immediate east of Akyaka well beyond the village of Kozlukuyu, a dependent neighborhood of the town of Gökova, 3 km away. The acropolis, city walls 200 meters in length and around fifty rock tombs are located along the steep climb (sea level to 400 meters) of Küçük Sakar at Kozlukuyu. The Acropolis was explored by the French archaeologist Louis Robert in 1937.
In 546 BC, the Persian armies under the command of Harpagus conquered the area, but the Carian customs and the religion remained unchanged. Delian League took over between 484 and 405 BC and Idyma is mentioned in the tax lists for the years 453-452 BC, the earliest written document on the city. The same reports mention a local sovereign by the name of Paktyes, whose descendants may have founded a dynasty which governed Idyma and to whose members the rock tombs could be attributable.[5] A mint city, Idyma produced its own coins, one side of which was marked with the name Idimion, and the other side with the head of a Pan, hinting at a shepherd's cult.[6]
From 167 BC to at least the 2nd century AD, Idyma, together with the entire region south of Muğla (Mobolla) was part of the Rhodes's mainland possessions (Peræa Rhodiorum). A Byzantine castle worth restoring also stands on the slopes of Sakar and a tunnel leads to the bank of the stream of Azmakdere or Kadın Azmak, possibly named Idymus in ancient times.
Because of the extent of the ancient site, in terms both of its area and longevity, some of its archaeological finds are associated with Akyaka, while many with Gökova and particularly Kozlukuyu.[7]