@hallmarc The Macquarie Lighthouse, located in Sydney, Australia, is indeed the first and longest-serving lighthouse site in the country. It was designed by convict architect Francis Greenway and was named after Governor Lachlan Macquarie, who commissioned its construction in the early 19th century. The Macquarie Lighthouse has played a crucial role in guiding ships safely through the entrance to Sydney Harbour since it was first lit in 1818. Over the years, the lighthouse has undergone several upgrades and renovations to keep up with technological advancements in navigation aids. Today, the Macquarie Lighthouse stands as a historic landmark and a symbol of Australia's maritime heritage. It continues to operate as an active aid to navigation, helping ships navigate the waters around Sydney Harbour safely.