Step 1 : Introduction to the question "What happened to the inter-island ferry Wahine on 10 April 1968?"
...The TEV Wahine (from the Maori word for 'woman') capsized after striking Barrett Reef at the entrance to the harbour. 51 lives were lost that day and a further two victims died of their injuries long after the event. The wreck was a result of extreme weather conditions created when southward moving Cyclone Giselle met a storm driving up from Antarctica. Winds which were severe even by Wellington standards (reaching 275 km/h, the strongest ever recorded in the city at the time) lashed the capital, causing significant property damage in addition to driving the ferry onto the rocks. (www.nzhistory.net.nz) (www.thewahine.co.nz)