Jet Boat Sydney Harbour

Im also going on holiday in Sydney, Australia soon.
Does anyone know the service most affordable jet boat that ran over the Sydney Harbour. The journey must be atleast 25mins
and having adults and cheap price of children.
Thank you

Hello have also been planning a trip to Sydney and also wanted to go jet boating. I found this "See Sydney and beyond smart card" which not only gives you free travel on two different drive boats, but has 40 other Sydney attractions that you can get for free, and many other economies too.
I worked it'll save me a lot of money and time while I'm in Sydney, he may be able to do the same thing for your family I hope Good luck and bon voyage!
http://www.seesydneycard.com/pages_menui ...

I found several sites to visit by clicking on this link:
http://www.google.com/search?sourceid=na ...
You can search for price and delivery.
Best I could do
Hope