New Zealand Working Holiday Visas
New Zealand often has short-term work opportunities for working holidaymakers. Please check out the information provided by the Department of Immigration: http://www.immigration.govt.nz/migrant/stream/work/workingholiday
New Zealand Visitor Visas
You may need to apply for a visitor visa or permit if you intend to stay temporarily in New Zealand, but you don't intend to study or work. When you are granted a permit, you can stay in New Zealand for up to nine months.
For full details, check out the information provided by the Department of Immigration:
http://www.immigration.govt.nz/migrant/stream/visit/