To the west of Corinth, there is the mountain Ziria (alternative spellings Ziria or Ziria or Ziria, or Tziria or Ziria) and the ancient name is Kyllini. Ziria is the second highest mountain of the Peloponnese, with the highest peak the Point (2374m.). It is usually distinguished in the main formations of Megali Ziria or Ziria and Mikri Ziria or Gymnou, with the point of separation of the large ravine of Flampouritsa with the river Sytha. The highest peak of Mikri Ziria is Snow (2127m.), While in Megali Ziria is Lake Dassiou, which dries up in summer.

In the area is the artificial lake Doxa or Feneou, as well as the well-known lake of Stymfalia since antiquity and older name Zaraka at 600m.

The area is characterized by beautiful forests of conifers and plane trees, cedars and maples while there are over 2000 different species of plants. North of Megali Ziria and at an altitude of 1500-1600m. extends the "plain of Ziria".

In the area there are several monasteries, such as the historic monastery of Ag. Vlasi and the monastery of Ag. Georgiou, as well as many picturesque chapels. According to mythology, the god Hermes was born on Mount Ziria, as the Cave of Hermes reminds us, decorated with stalagmites, stalactites and small lakes.

Ziria is 150 km away. from Athens.