If you like a thrill then white water rafting is for you. Depending on how much danger you are prepared to put yourself in, you can choose between grade 2 and grade 5 rapids to experience the thrill of your life. I've been rafting twice and I can honestly say that if you don't mind getting wet this is an activity not to be missed.
New Zealand is home to six bungy jumps ranging from 40 meters to 140 meters. I have done them all and recommend no visitor leave the country without having done at least one. I enjoyed the Nevis Jump the most, as is the second highest in the world I doubt i'll ever come as close to flying again.