The keep is now inaccessible but the kitchen range can be entered.
Nothing survives of a chapel which apparently stood alongside but the castle doocot survives.
On the shore below blocks of masonry may be the remains of a seagate, there was a curtain wall on this side. It was at Dunure, in what became known as The Black Vault, that Gilbert Kennedy, 4th Earl of Cassillis had the Commendator of Crossraguel Abbey, Alan Stewart 'roasted in sop' until he signed over the Abbey lands. The Earl was later fined and instructed to pay Alan Stewart a pension, but he got to keep the lands.