The natural harbor was fortified in 1550 by the Dukes of Savoy.
In 1713, having become Kings of Sardinia, they renamed it "Port Royal".
From 1730, the site was gradually transformed: a lighthouse was built, followed by a dry dock, an arsenal and a forge. Around 1770, the complex was further enriched with a penal colony, a rope factory and officers' barracks.
Today, the port is dedicated to yachting, while retaining the marks of its history. Since February 1990, the Port Royal de la Darse has been listed as a Historical Monument, offering a place where the past remains present and can be discovered as you visit.