Waiheke Island

This guide to Waiheke Island descends into a hidden wartime fortress code-named A2, dug by hand through volcanic rock during the Second World War to hold two of New Zealand's largest naval guns. Workers connected gun pits to ammunition stores, a plotting room, an engine room and barracks, all buried out of sight from the sea. Stand at the gun pits and take in the same stretch of the Hauraki Gulf those crews watched around the clock.