The Odontotos rack railway runs between Diakopto on the coast of the Corinthian Bay and Kalavryta on a height of almost 750 meters. It follows the Vouraikos river over bridges and through tunnels.

The construction of the network started in 1889 and it was inaugurated on 10 March 1896. It has a length of just more than 22 kilometers. With a gauge of 0,75 meter the Odontotos is one of the narrowest in the world.

The railway has some characteristic stations. The main image shows the Kalavryta railway station and PiP1 the Mega Spileo station.