New Zealand's worst maritime disaster of the 20th century happens when the <a about="#mwt63" data-mw='{"parts":[{"template":{"target":{"wt":"SS","href":"./Template:SS"},"params":{"1":{"wt":"Penguin"}},"i":0}}]}' href="https://en.wikipedia.org/wiki/SS_Penguin" id="mwjQ" rel="mw:WikiLink" title="SS Penguin" typeof="mw:Transclusion">SS<span typeof="mw:Entity"> </span><i>Penguin</i></a>, an inter-island <a href="https://en.wikipedia.org/wiki/Ferry" id="mwjg" rel="mw:WikiLink" title="Ferry">ferry</a>, sinks and explodes at the entrance to <a href="https://en.wikipedia.org/wiki/Wellington_Harbour" id="mwjw" rel="mw:WikiLink" title="Wellington Harbour">Wellington Harbour</a>.