Feel the cool dampness of the earth beneath your feet. You stand before Fort Stony Batter a relic of World War II.
This isn’t just any fort. It’s a testament to human ingenuity and a chilling reminder of a time when war loomed large. Nestled at the northeastern tip of Waiheke Island this fortress boasts the largest tunnel system in New Zealand. A network of hand-hewn tunnels and chambers stretches over a kilometer.
Construction began in 1943 a top-secret project. The remote location presented challenges. There was no road access. The project demanded a high degree of self-sufficiency. Workers lived and worked on site. They even had their own machine shops. The fort was known only as A2 to maintain secrecy. The tunnels were quarried by hand. Concrete filled the formwork. Reinforcing steel was scarce. The rock itself provided the aggregate. This gave Stony Batter its name.
Initially projected to cost £140000 the final bill ballooned to £327966 excluding the cost of the guns. Only two 9.2-inch naval guns were ever installed. They had a range of over 30 kilometers. Their rate of fire was one round per minute. These were the largest guns ever used in New Zealand. They were never fired in anger. Only for tests and training. By 1955 much of the deteriorating material was removed. In 1961 the guns were scrapped.
The fort’s history is also tied to a decades-long access dispute. A local farmer John Spencer claimed livestock theft. He blocked access. The dispute was finally resolved in 2002. Public access is now assured.
Fort Stony Batter remains a fascinating example of wartime engineering. Its tunnels are now open to the public. The preservation society works to restore it. They hope to one day place an artillery piece in a gun pit. Imagine what it must have felt like to be here during the war. The echoes of history still resonate in the tunnels beneath your feet.