The half-mile, elevated boardwalk was flanked by steep fortress walls on one side and a 330-foot drop on the other. The narrow, fenced-in corridor was a perfect kill zone. Along Governors’ Promenade are several La Citadelle bastions ranging in age from Cap Diamant Redoubt (late seventieth century) to Mann Bastion (1829). The largest of the protruding cannons is Rachel. The artillery was capable of hitting a ship 1.5 miles away.