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Cornelia Battery no 1 gun emplacement. Mounting: Cornelia Battery east gun emplacement. A circular mounting for 6 inch Vickers design quick firing Naval gun. Mounting bolts are present. Concrete emplacement contains ready use lockers, field telephone position as well as the opening for the shell hoist. Adjacent to the mounting is the battery store with  a camouflage shrubs still growing on the roof. The cannon and shelter (which would have been similar to those at Fort Wynyard on the mainland) have been removed. Oral sources indicate that barrels of the cannons were seen in thick bush close to the harbour (Bisset pers com) but were not located during this survey. There are unsubstantiated reports of the barrels having been dumped in the harbour. It is not clear which model of weapon was used, however the most commonly used type for coastal defence was the Marks VII and VIII. The weapons were designed in 1899, fired a 50.8 kg projectile at a maximum range of 16.340 km at 20 degrees of elevation. Separate propellant bags were used. Between 5 and 7 shots could be fired per minute. Magazines: A flight of stairs provides access to underground magazine about 10m below surface. The magazine surrounded by a ground water control tunnel with a sump located close to the entrance of the magazine. Steel door leads to magazine interior where steel shell racks are still in place. Also present is shell hoist tunnel and ventilation shafts leading to mushroom ventilators on the surface. The shell hoisting equipment and electric motor has been removed as have all the bronze bolts and fixtures that were used in areas where explosive were stored. The entranceway to the magazine is presently flooded by ground water as a result ofneglect of the sump pumping system.