Stony Batter - Credit: Wikimedia Commons
Stony Batter is a historic defence installation at the north-eastern end of Waiheke Island, Auckland, New Zealand. It is sited within a 50-acre (200,000 m2) scenic reserve of the same name, owned by the New Zealand Department of Conservation (DOC). The park serves double duty as a historical (Category 1 Historic Place) and nature reserve, containing unusual rock formations, associated with an extinct volcano, three significant bush blocks and three concrete gun emplacements with an extensive tunnel system,Stony Batter Historic Reserve, Waiheke Island (from the New Zealand Department of Conservation website) reputed to be the largest in New Zealand.Stony Batter (from the 'netlineservices.co.nz' website. Accessed 2008-01-10.) Read more on Wikipedia
Source: en.wikipedia.org