Rotorua, the adrenalin capital of NZ

(Queenstown may argue that point)

Rotorua is a major destination for both domestic and international tourists, with the tourism industry being by far the largest industry in the district. The city is known for its geothermal activity, with a number of geysers, notably the Pohutu Geyser at Whakarewarewa, and hot mud pools located in the city. This thermal activity owes itself to the Rotorua caldera on which the city lies. Rotorua is also a top adventure destination and is New Zealand's Maori cultural heartland.

Rotorua city is renowned for its unique “rotten eggs” aroma, which is caused by the geothermal activity releasing sulphur compounds into the atmosphere.

See New Zealand Volcanos