Dress down Friday for the Cambridges

The Duke and Duchess of Cambridge have been in suits and hats all week - not to mention crystal trimmed cocktail wear for Kate - so as the weekend beckoned they went dress down.  Day five of their tour took them to Auckland and after four days of new outfits, the duchess was back in some favourite casual wear while the duke wore a blue shirt.  Rather than a blue suit.  He's packed light.

The Cambridges do casual on day five of their tour of New Zealand

The day began in Whenaupai where the royal couple met members of the Royal New Zealand Air Force and their families.  The duke and duchess spent some time at the base there where Kate shared parenting experiences.

The Duchess of Cambridge meets parents at the Royal New Zealand Air Force base in Whenaupai on April 11th 2014

The royal pair then moved on to Auckland where they met members of the New Zealand America's Cup teams.  

William and Kate meet sailing teams in Auckland 

But while it might have started as a relaxing Friday, things then took a competitive turn as Kate and William took to opposing boats for two races across Auckland harbour.  And after winning round one, there was no mercy shown by the Duchess of Cambridge.  She sailed her husband into second place again - the duke joked he had been sabotaged.  

The Duchess of Cambridge with the team that helped her beat her husband into second place in two boat races in Auckland

The duchess sailed in her gap year so perhaps her win wasn't that surprising and the couple looked particularly close back on dry land after the race.  They also tried out a Sealegs boat - an amphibious craft that can move on land as well - and were later presented with a mini version for Prince George.

That won't fit in the suitcase for the long trip back - Kate and William get a mini Sealegs craft for Prince George on their visit to Auckland

The couple then did an impromptu walkabout at Hobsonville Marina as the day came to an end and then they boarded a plane back to Wellington after a very dress down Friday.

The Duchess of Cambridge pleases fans who turned up to see her by doing an unplanned walkabout after her race victories