What everyone else has said above.
shippies is worth a look when it's big, just stay wide as there's plenty of waves for everyone. This part of the country East and west coast are only half and hour apart so your bound to get waves somewhere, as always respect gets respect. The Cape is worth the drive, beautiful empty beaches around spirits bay though very sharky.
enjoy your trip though remember the roads can be challenging especially from Auckland to Whangarei with intense driving (others) so remember if there is a convoy behind you pull over when it's safe and allow others to pass, camper vans are notorious this time of the year everyone will be wanting to pass you.
stay stoked