Plataneiko is a river in the northern part of the Achaia prefecture

Prefecture

A prefecture is an administrative jurisdiction or subdivision in any of various countries and within some international church structures, and in antiquity a Roman district governed by an appointed prefect.-Antiquity:...

. The river flows entirely in municipalities of Rio

Rio, Greece

Rio is a town and a former municipality in Achaea, West Greece, Greece. Since the 2011 local government reform it is part of the municipality Patras, of which it is a municipal unit. The former municipality had a population of around 13,000.- Geography :...

 and empties into the Gulf of Patras

Gulf of Patras

The Gulf of Patras is a branch of the Ionian Sea. On the east, it is closed by the Strait of Rion between capes Rio, Greece and Antirrio, near the Rio-Antirio bridge. On the west, it is bounded by a line from Oxeia island to Cape Araxos...

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Geography

The river begins near Kastritsi

Kastritsi

Kastritsi older forms: Kastritsio and Kastritsion are two communities that are divided into Ano Kastritsi and Kato Kastritsi that is located 4 km from downtown Rio and is part of this municipality in the prefecture of Achaia. The distance between the two communities are approximately 4 to...

. At the course of the river passes near the town of Platani where it receives the river's name, it empties into the Gulf of Corinth. The area receives water every year and during the winter, it faces floods and causes damages.