Though officially known as National Monument No. 438, locals have long referred to this imposing fortress by its more evocative nickname. Built to defend the medieval bridge that still spans the river beside it, the castle’s current remains tell a story of continuous military importance through the centuries, with much of what visitors see today dating from sixteenth-century renovations rather than the original fourteenth-century construction.

The castle’s rectangular tower house showcases the defensive ingenuity of medieval military architecture. Its ground floor features a barrel vault with an attic space tucked within, whilst a single floor rises above. The eastern entrance was no mere doorway; it came equipped with a machicolation overhead and a murder hole cunningly concealed within a window seat, allowing defenders to rain down unpleasantries on unwelcome visitors. From here, a mural staircase leads to the attic floor before connecting to a spiral staircase that continues upward. Two small chambers are built into the curves of the vault itself, making clever use of every available space within the thick walls.

The defensive features extend beyond the main tower to include a bawn, or fortified courtyard, on the northern and western sides. The wall walks demonstrate interesting variations in design: covered walkways run along the north and south walls, whilst the east and west sides feature open walkways complete with crenellations for archers. A corbelled chamber projects over the stair turret at the northeastern corner, providing an additional defensive position. Throughout the structure, narrow window openings with built-in seats pierce the northern, southern, and western walls, offering both light and defensive positions. Though the southeastern corner has collapsed, the remaining structure stands as a remarkable example of how medieval fortifications evolved to meet changing military needs over the centuries.