A garrison of 177 soldiers defended the fort and served its guns. On the landward side the fort consisted of two half-bastions that flank the entrance, which is a few metres above the level of the rocks. The bastions are loopholed for muskets to enable the defenders to resist attempts to scale the defences.
A detachment of 177 soldiers defended the fort and controlled its guns. On the landward side, the fort consisted of two half-bastions that surround the entrance, which is a short distance above the level of the rocks. The bastions are armed with loopholes for muskets to facilitate the defenders' resistance against scaling the defenses.