Acheloos, Achelous or Aspropotamos is Greece’s second longest river, after Aliakmonas, crossing a 220 km long route. Its sources are
located in the southern part of the mountain of Pindos and it empties in the Ionian Sea, south of Echinades Islands.

   Its delta is populated with over 30.000 animal species, including among others flamingoes, sea eagles, woodcocks, ducks, pelicans, frogs and turtles. Achelous river is a vital ecosystem of both great ecological and aesthetic value and for this reason the river, together with the lagoon of Messolonghi - Eitoliko, is protected by the international RAMSAR Convention.