That would probably be the Canterbury Plains in the South Island.
No. The sixth largest country is Australia. New Zealand is the 74th largest country in the world.
Canterbury Plain
Auckland in both land area and population
Tasmania, the Island state of Australia, is about 90,758 km2. New Zealand is about 268 021 km2. So Tasmania is about one-third the size of New Zealand.
The second largest city in New Zealand is generally regarded as Christchurch, by population, and Auckland in terms of land area. However, see the Sources and Related Links section, below, for what the New Zealand government website has to say!
um well no country is flat. New Zealand has quite a lot of mountains
The South Island is the largest island in New Zealand by area.
The largest dam in New Zealand is the Benmore Dam
The North Island at over 110,000 square kilometers.
The largest "music event" to occur in New Zealand was Nambassa in 1979.
The North Island in New Zealand is the second largest island
New Zealand's largest beetle is the Huhu Beetle (Prionoplus reticulans).