Mock fort. c.1750. Restored 1986. Built for the fifth Lord Byron. Coursed and squared rubble and ashlar. Plinth, string course, crenellated parapet. 9 round bosses on lake side. Semi-circular central bay flanked by single triangular bastions. At each end, curved steps. Each bastion has a circular tower, that to south west roofless. That to north east has dome with ball finial and 2 square openings. Each tower has a moulded pointed doorway. At rear, 7 pointed arched recesses. Adjoining dock to north east has slab coping. This fort was built as an eye catcher to be seen across the lake and also as s mooring for the ship which the fifth Lord Byron kept for entertaining his friends with mock naval battles. (NCC/js)