Measuring just 9 metres from east to west and 6.5 metres from north to south, this modest construction speaks to the ingenuity of early Irish communities who built their homes on the water for protection and prestige. Rising lake levels have partially submerged the structure over the centuries, transforming what was once a habitable island into what now appears as a cairn of stones breaking the surface of the lough, stretching 18.6 metres in total when accounting for the underwater portions.

The crannog near Mulnagoad represents a building tradition that flourished in Ireland from the Bronze Age through to the medieval period, with some examples remaining occupied as late as the 17th century. These artificial islands were typically constructed by laying down layers of stone, timber, and peat in shallow water, creating stable platforms upon which circular houses could be built. The presence of a low stone wall still visible on the eastern side of this particular crannog suggests it may have featured defensive structures or defined living spaces, common features of these lake dwellings.

Archaeological surveys have documented hundreds of crannogs across Ireland, particularly in the midlands and western counties, yet each one offers unique insights into how our ancestors adapted to their local environments. The Bannus Lough example, though modest in size and partially reclaimed by the water, remains an evocative reminder of a time when the safest place to live was surrounded by water, accessible only by boat or causeway, where families could sleep soundly knowing the lough itself served as their first line of defence.