Been there and done that . AND it was my first time ever whitewater rafting. AND we actually flipped the boat . AND I am not so young . And it was one of the highlights of my trip - did not Bungee jump though - but did hangglide. Its actually not actually as scary as it looks though I am told its a Class 5 rapid. Was very impresssed with the guides and the company running this. Would highly recommend this to anyone fortunate enough to make it to New Zealand - would love to go back.