Most people passing the junction would not look twice. Those who do will find a Latin cross with splayed extremities, meaning the arms flare outward at their tips rather than ending bluntly, carved into the stone of the north wall, positioned just above a narrow round-headed window and set to the west of the chancel arch of the church beside it. It is an easy thing to overlook, and that is a significant part of what makes it worth noticing.

Cross-slabs of this type belong to a long tradition of early medieval stone carving found across Ireland, in which simple incised or low-relief crosses were cut into flat stones and used to mark graves or sacred boundaries. They vary enormously in ambition, from elaborate scripture crosses to modest incisions barely distinguishable from a natural scratch. The Dalkey example, recorded by O'Reilly in 1901 and cited in his survey of pages 135 and 147 to 149, falls into the quieter end of that spectrum. It survives in the north wall of a rectangular walled graveyard, a setting that was itself likely shaped and enclosed over many centuries. The compilation of the site record by Geraldine Stout and Padraig Clancy in 2018 places it within the broader archaeological catalogue of the area under the reference DU023-023002.

The graveyard is raised above the surrounding road level, which means a visitor approaching on foot along Castle Street will find the wall rising noticeably before them. The cross-slab itself is set into the north wall, so it is worth walking the perimeter of the enclosure to locate it rather than simply entering through the gate and looking inward. The narrow round-headed window below it is a useful landmark. Light conditions will affect how clearly the carved lines read against the stone, so a visit on an overcast day, when diffuse light reduces shadow and glare, often makes the relief easier to see than bright sunshine would.