The Milburn Carrier II has delivered its load of cement and is on the way back to the South Island. High tide is needed to negotiate the channel.
The Manukau Harbour – opening from the Auckland Isthmus to the Tasman Sea – is too shallow for modern shipping. Its main use these days is to deliver cement from the South Island. By the end of next year these deliveries will also go to the Port of Auckland (on the other side of the isthmus), gfreeing up Onehunga wharf for more recreational use.