4 day

Hire a rental car for 4 days and explore the scenic south, starting from the city, travel around the south for 4 days and explore. Head north to Te Anau, and explore the magnificance of Fiordland.
You will be astounded by the scenic beauty this area of the country has to offer.
Real Journeys offer some wonderful tours, see them to book a scenic boat trip though Milford Sounds or Doubtful Sounds.

Southern Scenic Route

Take the coastal journey along the Southern Scenic Route and unlock secrets found only in the south of the South Island, New Zealand. Explore New Zealand native bush rolling to the water's edge or stroll down a white sandy beach and enjoy peace and solitude. Meander through the colourful coastal fishing villages and seaside settlements. Venture down side roads and find places to view wildlife. Stay overnight along the way, meet local people and find out what we mean by 'southern hospitality'.

For more information check out their website.