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Acheron river is located in the Epirus region and flows towards the Ionian Sea. It is a famous river that is inextricably linked to the ancient Greek history and mythology as it was the gateway to the underworld.



Acheron river starts its journey on Mount Tomaros of Ioannina at altitudes greater than 1,500 meters and ends in the Ionian Sea, covering a distance of over 50 km. In its  biggest part the river represents the natural boundary of the prefectures of Ioannina, Thesprotia and Preveza. During its journey the river is fed with water and sediments by many springs and tributaries from the mountains of Souli and Paramithia.

According to the geomorphology of the area, the river is divided into 3 sections where the landscape is completely altered. At the upstream part the river crosses a hilly terrain with gentle slopes. The morphology of the terrain changes at  the village Serziana. From this point and  for the next 10 km, a deep gorge is formed. This is the famous "Straits of Acheron". In the settlement of Gliki landscape is turning into a big alluvial plain until the sea where the river forms a Delta.

The geography of the area was completely different before the second half of the 20th century. After the end of the second World War, Acherousia lake who was located just before the end of the river was drained.


History - Mythology

Acheron, according to Greek mythology,  was the gateway to the underworld where Charon was leading with boats the souls of the dead to Acherousia lake. On the northeast shore of Achesousia lake was  located the Oracle of Acheron. The oracle was the place where the living could talk to the dead.

"Straits of Acheron" host the famous footpath, known as "Skala Tzavelena", that leads to the villages of Souli.



In the rocky slopes of Acheron gorge are nesting raptors such as golden eagles, vultures, hawks, etc. In the woodland slopes several representatives of mammals have been recorded  such as wolves, wild boars, foxes, badgers, wildcats, etc. The deltaic area  hosts birds (storks, nightingales, partridges, snake eagles etc.), reptiles and amphibians. 9 species of fish have been recorded with prominent the species "acheronogovios".

The flora of the region is composed of more than 180 species of plants. Among them grow  willows, ashfaq, alder etc. In the flora of Acheron are recorded rare and endangered species like rocky molton, epirotiki skaviosa etc.


Tourist Attractions

The river Acheron is offered for a variety of alternative tourism activities. The "Straits of Acheron" are available for trekking, mountain biking, hiking and horseback riding in specially designated areas on the river.

For lovers of river sports, Acheron is an ideal place for rafting, kayaking and canoeing.

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