The Castle of Old Wick, also known as 'The Old Man of Wick,' is a striking medieval site perched on a rocky promontory overlooking the North Sea. Its origins date back to the 14th century, and the dramatic ruins feature a four-storey tower and impressive earthworks. Due to ongoing conservation work, visitor access is currently restricted, but the castle's rugged beauty and historical significance make it a must-see for anyone exploring Caithness.