This country's Rotorua caldera is a part of the volcanic system named for its largest lake.  
This country's Rotorua caldera is a part of the volcanic system named for its largest lake.  The Huka Falls empty that lake, Lake Taupo, into the Waikato River, which names a university in this country's fourth-largest city, Hamilton.  Tauranga lies on this country's Bay of Plenty and this country's largest (*) island contains both the Southern Alps and the city of Christchurch.  The Cook Strait separates this country's North and South Islands and borders its capital, Wellington. For 10 points, name this nuclear- free neighbor of Australia, a Pacific country whose largest city is Auckland.
This country's Rotorua caldera is a part of the volcanic system named for its largest lake.  
{New Zealand}