Don't worry, New Zealand is not just about the extreme sports. There are also quite a few back-country experience. You can do a farm stay experience and stay on a sheep or diary farm to see how they live on a day to day basis. New Zealand is one big beautiful farmland.
Checkout the official website
http://www.newzealand.com/int/ or just send an email to one of their official i-SITE visitor centre. They provide free information and booking.