We're thinking of splitting our time among the Marlborough/Nelson/Picton/Abel Tasman area and then flying Nelson to Queenstown and touring the Fiordland (staying in Te Anau). What do you think?
Forget Dunedin. Toyota cars and traffic signals are the same in all cities(big or small).
16 days is hardly enough for Marlborough, Nelson, Picton & Able Tasman and then the Fiordland region. Nelson - Able Tas National Park is a day in itself.