The protected area of Alykes is located between the coastal villages of Tigaki and Marmari on the north side of the island of Kos. It was a sea salt production site until 1989 with an annual production from 1944 to 1987 that ranged from 900 to 3500 tons.
It is probably the most important wetland on the island. In its 930 acres hosts flocks of birds on their migration routes while the wider area is rich in flora and fauna. An area of about 790 acres is below the average sea level up to 0.32 meters. Between the wetland and the seashore there is a series of dunes that reach a height of 1-2 meters.
Pelicans and herons are some of the bird species found among water turtles and water snakes throughout the year. Flamingos visit the area from late autumn to early spring, and their population as well as the time of stay depends on weather conditions and the water level. Alykes is a member of the Natura 2000 protected regions network.