The monument was commissioned by John Mapas to provide famine relief work, specifically to employ the local population during the harsh winter of 1742.
The structure is locally referred to as 'The Witch's Hat' due to its distinct pointed, conical architecture.
It is situated on the highest point of the park, which was once the private estate of the Mapas family.
The site includes a surrounding stone wall that served as an enclosure for the 18th-century landscape design.
The obelisk replaced an earlier signal tower that previously occupied the strategic hilltop position.
The Obelisk, also known as the Killiney Hill Obelisk, is a prominent stone monument located at the summit of Killiney Hill in County Dublin. Constructed in 1742 by John Mapas, the structure was built to provide employment for the local poor during a period of famine. It stands within the public grounds of Killiney Hill Park, which covers approximately 20 hectares of recreational space. The monument serves as a landmark visible from much of the surrounding coastline and Dublin Bay. The site offers panoramic views extending across the Irish Sea towards Wales on clear days. The structure is built from local granite and sits at an elevation of approximately 153 meters above sea level. It is currently maintained as a historic feature within the managed landscape of the park.
From the base of the obelisk looking north toward the vista of Dublin Bay.
Wear sturdy walking shoes as the paths leading to the summit are steep and uneven.
Bring binoculars to take advantage of the expansive views over the Irish Sea.
Combine the visit with a loop walk through the surrounding park woodland.
Do not attempt to climb the exterior stonework of the monument, as it is unstable and restricted.
No specific dress code, but stay on marked paths to protect the surrounding park vegetation.
