The Bunnet Stane itself is an elevated table of rock, about ten feet by twenty feet across, which sits on a thin column of rock like a giant mushroom. There are several romantic explanations for the stone's shape, but it was formed entirely by the natural weathering of the exposed outcrop.
Beneath the Bunnet Stane, carved into the rock, is a human-made cave known as the Maiden’s Bower. It supposedly takes its name from a romantic story in which a young woman, after seeing her lover ambushed and killed near the rock, chose to live there for the rest of her life. However, this is just one theory for the cave's existence.