Dojran lake covers an area of 43.1 km2 of which 27.3 km2 belong to Macedonia and 15.8 km2 Greece. It is the smallest of the valley lakes in Macedonia, with a maximum depth of 10 meters. This is the warmest lake. Water temperatures are influenced by the proximity of the Aegean Sea. Dojran water temperature reaches up to 27 C, and there is transparency from 1 to 3.6 m. Water in the lake comes from underground springs and rivers: Golema River, Toplec etc.. The lake flows through the river Golaja, which is located on the Greek territory.
Blue-green algae are most prevalent with the phytoplankton in the lake. In August and September of their mass is so high that the entire surface of the lake is covered with water flower. Dojran abounds in fish and largest fresh water production in Europe. Fish fauna in Dojran is represented by 15 types, one of which is endemic.
Besides the western coast Dojran, there are two fishing settlements Old and New Dojran that today all spill over into an urban whole.
Legend of the existence of the lake says that the space where it is today, in ancient times, there was a well from which people from fill some water. After taking some water, they closed the well with nine locks. One day, most beautiful young girl from that region came for water, the girl named Dojrana. Near the well was the man she was in loved with. She filled water, but elated by caressing the boy forgot to close the ninth padlock. Water from the well began to flow through the whole valley. That is how the formation of the lake begins and got its name after girl Dojrana.