The Gallan Gréine marker stone is located at the end of the strand beside the Irishtown playing fields. Carved by Cliodna Cussen and dedicated to James Joyce in 1983, a sighting stone stands 300 metres to the west and when aligned with the marker stone to the east, indicates the winter solstice with the sun rising over Killiney Hill around 21 December each year. The face of this stone is also a sundial.