What survives is easy to overlook: a circular stone-lined shaft, nearly a metre across, with its stone lining rising half a metre above ground level and sealed with a single flat capstone. Nearby, on the external north wall of the walled garden, three small lintelled niches sit at roughly chest height, each one barely wider than a hand-span, interpreted as possible beam support niches that would once have held the timber framework of a structure now entirely gone.

The pilchard fishery along the south-west Cork coast was a significant seasonal industry, particularly from the sixteenth through to the eighteenth century, when catches were salted, pressed for oil, and exported to Catholic markets in France, Spain, and Portugal. A fish palace, in this context, was the shore-based infrastructure that made that trade possible, providing space to cure and barrel the fish before they were shipped. The Leamcon site sits within the estate of Leamcon House, and while the documentary history of who built or operated this particular facility is not recorded in what survives, the physical remains, the shaft, the capstone, the beam niches, are consistent with a small fish cellar of exactly the kind that once dotted sheltered inlets along the Mizen Peninsula and the broader coastline of West Cork.

The remains are slight and require a patient eye. The shaft itself, capped and quiet, gives little away, and the three niches in the garden wall could easily be passed off as incidental stonework. What makes the site worth pausing over is precisely that quality of near-invisibility, the way an entire industry has contracted to a handful of carefully laid stones.