Duchess of Cambridge is crowned queen of the ocean

Prince William and his wife, Kate, the Duchess of Cambridge, greet as they return to Viaduct Basin in Auckland. (AP)

Prince William and his wife Kate, the Duchess of Cambridge receive a gift of a small Sealegs Craft for Prince George after they travelled by Sealegs craft to Westpark Marina, Auckland, New Zealand. (AP)

Kate, the Duchess of Cambridge stands with New Zealand Americas Cup skipper Dean Barker in a match race against her husband Prince William on the Waitemata Harbour in Auckland, New Zealand. (AP)

Prince William steers the wheel during a match racing against his wife, Kate, the Duchess of Cambridge on the Waitemata Harbour in Auckland, New Zealand. (AP)

Kate, the Duchess of Cambridge, prepares to go match-race sailing on America's Cup yachts with Skipper Dean Barker, in Auckland, New Zealand. (AP)

Prince William and his wife, Kate, the Duchess of Cambridge, center, arrive at Viaduct Basin in Auckland, New Zealand. (AP)

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Prince William spills water from an umbrella onto his wife Catherine, the Duchess of Cambridge, before boarding two America's Cup yachts on Auckland Harbour. (REUTERS)

Kate, the Duchess of Cambridge, right, and New Zealand Prime Minister John Key smile during the unveiling of a portrait of Queen Elizabeth II during a state reception at Government House in Wellington, New Zealand. (AP)

Prince William, right, and Kate, the Duchess of Cambridge, second left, arrive for a state reception at Government House in Wellington, New Zealand. (AP)

Prince William, right, and his wife Kate, the Duchess of Cambridge, unveil a portrait of Queen Elizabeth II, by New Zealand artist Nick Cuthell, during a State reception at Government House in Wellington, New Zealand. (AP)

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