Alyki is a shallow coastal lagoon located between the lagoons of Ptelea and Karatzas. It’s surrounded by large salt marshes and coastal dunes, where there are no reeds nor marshes with fresh water. In the northern part of the lagoon there are salt marshes and crops that extend to the wetland.
On the route Xanthi-Porto Lagos and 2 km west from Porto Lagos, in New Kessani, is located the Information Center Lake of Vistonida. Open from mid-1998 and is staffed with appropriate scientific staff.
The lake Ismarida, “Older Mother Breast” or “Mother Lake” is located south of Rhodope, east of Vistonidas lake and within 3 km from the sea, particularly the bay Anoikto. It occupies an area of 2.3 sq. kilometers. The maximum depth is 1.5 m and the average depth of 1 m. It’s the only lake across Thrace which has entirely fresh water and has been identified among the 11 Greek wetlands of international importance protected by the International Convention Ramsar. A big part of the lake is covered by water lilies (Nymphaea alba) and “trivolokrateles” (Trapa natans), while localy you can see the water lentil(Lemna minor) floating. In the northeastern part spread extensive reedbeds. Among the many protected and rare species in the area is also included the “curlew” characterized as the rarest bird in the world.
and a narrow coastal sandy beach. It’s surrounded by bare, partially cultivated hills with small islands and flat muddy land. The fishing station is located in the southeastern part of the lagoon. In the western part is the village Assistance. The Karatzas lagoon is one of the most important areas in Greece for birds, with species breeding, migrating and wintering there.