I'm friendly but not a Kiwi, Zubenel! Mt John Observatory at Lake Tekapo in the S Island is well worth a visit. Went there last year & thoroughly enjoyed both the day and night tours (night includes telescope viewing). Fabulous scenery, good knowledgable tour guides, very interesting research facility. Link is:
http://www.earthandsky.co.nz/index.htm
Cheers -