 Originally, the track began at Helsinki rail depot and warehouses, then ran under Heikinkatu (after Winter War called Mannerheimintie) and continued in a chasm to Ruoholahti.From Ruoholahti the track went via Hietalahti to Merisatama in the middle of Telakkakatu and from there onwards along the edge of Kaivopuisto to the tip of Katajanokka.It was then around long.