Dalkey Quarry is a disused granite quarry, stone from which was used during the 19th century to build Dún Laoghaire Harbour, and is now a rock climbing location within Killiney Hill Park. During the building of the harbour, the quarry was connected to Dún Laoghaire via a metal tramway known as 'The Metals', some parts of which are still visible in some parts of Dalkey. Dalkey granite was also shipped by sea to Kylemore Abbey in Connemara, County Galway for the facade of the Abbey. Granite from Dalkey quarry was also used for building The Thames Embankment in London, All Saint's Church in Raheny and many other buildings.