Axios river hosts a remarkable flora and fauna and as a result it is considered to be a biotope of special interest together with the delta in Thermaicos, which is protected by the international convention of Ramsar.
“Evrirreon” or wide flowing river as Homer called it, enters the Greek soil after passing 300 km from its source on Serb-Albanian mountain Skardo, waters valleys and agricultural areas, it nourishes the soil, gives life to the surrounding areas, makes the climate more equable, crosses ancient Paionia and falls to Thermaikos gulf. The river has been known from the ancient times. It is praised by Homer in Iliad as “kalliston udor” or the best water and Euripides called it “okiroan” - the fast river in his play Vakches. The river was named after mythical Axios, progenitor of Paiones kings and it is offering its gifts since antiquity.