Construction of the quay started in 1918. After eight years, the stone quay, which stretches well over a kilometre into the sea, was completed. Subsequent to their excavation from the mountains, the stones passed through numerous skilled hands before they were ready to be anchored in the quay wall. Workers who hewed the stones, specialised stonemasons and divers were all a part of the construction process. Metalsmiths also aided in the production, repairing any tools that were used in construction.

The first stage hewers, or "rough-hewers", brought forth the raw materials. Gimlets and sledgehammers were used to excavate the rock - supplemented with gunpowder in the places where the rock was particularly hard. Once excavated, the roughly hewn stones were transported to the specialised stonemasons who divided the large blocks into adequately sized pieces. In order to break up the rock, first a series of holes was drilled thereafter iron gads were driven in around 10-12 cm, thereafter sledgehammers were used. After the specialised stonemasons had completed their work, the "smooth-hewers" took over. Finally with the help of pitching tools and sledgehammers, the granite blocks were ready to be laid into the wall.