Explore
Explore the external trenches, protective passages, and prison cells built into Citadel Hill.
The outer defences form the first line of protection for the star-shaped fort. This area includes the deep trenches meant to slow attackers and the interior passages used by defending soldiers.
You can walk through these lower levels to see the massive scale of the 19th-century stonework. It is also where misbehaving troops served time in cramped confinement.
15 mins
This deep, grass-covered trench surrounds the fort. It was originally designed as a severe obstacle for attacking forces. Walking through the ditch gives you a true appreciation of the massive scale of the star fort's stone walls.
10 mins
These are dark and cramped historical prison cells. Misbehaving soldiers from the garrison were locked up here as punishment. Ghost Tours run through this area, as the cells have a notoriously spooky atmosphere.
10 mins
Sally ports are narrow, protected passages running through the ramparts. They allowed defenders to safely enter or exit the ditch. Notice how the winding design prevents enemies from shooting straight into the main fort.
