Sallynoggin (Irish: An Naigín) is in Dún Laoghaire–Rathdown, County Dublin. The area consists mainly of former local authority housing built between the late 1940s and the mid-1950s by the Corporation of Dún Laoghaire.
The name is not Irish at all but English deriving from the "sally noggins" which referred to old timber-frame houses that were known to be situated there. The modern Irish word for noggin is the phonetic "naigín" hence "An Naigín" (The Noggin) as it is commonly called. More than likely this is a placename of English origin. Examples of the word naggin or noggin were collected in Hiberno-English, meaning ‘a wooden vessel’, or ‘the clay and sticks, or bricks used to fill the interstices of half-timbered houses’.
A long straight road connecting Rochestown Avenue and Glenageary was laid out in the eighteenth century and in 1787 was known as Woodpark Avenue, now Sallynoggin Road. Woodpark was the name of an old eighteenth-century house which is now part of the Sallynoggin Inn pub. In the 1830s the west side of Sallynoggin Road was lined with low, small-windowed thatched cottages. As of 1988 there were still ruins of some houses, probably built for employees of the Glenageary House estate, standing opposite the pub. In 1904 Kingstown Urban District Council sought tenders for artisans dwellings to be built in Sallynoggin. These subsequent houses, designed by William Caldbeck, became the first of a huge local authority building programme managed from 1947 for Dun Laoghaire council by architect Daithí P. Hanly, which eventually produced the largely residential area of Sallynoggin as it appears today. Sallynoggin Villas, a group of two-storey, terraced houses near Glenageary roundabout were amongst the earliest houses produced, as were those on Sarsfield Street. Dustin the Turkey, Irish television character and Eurovision entrant, comes from the area, as does local rap star Ste Brown.
The cache
The cache can be found at a recently opened pedestrian / cycling entrance to Sallynoggin. You are looking for a camouflaged small container in a public thoroughfare, so use caution!