There were 2 main companies running white water rafting in Cairns, both with similar cost and itinery.
We went for the Tully River 1 day water rafting experience with RnR. The company bus picked us up on time, and catered for all our safety, hunger needs. There were plenty of instructors per crew, and overall the instructors were very professional and looked after our safety.
Felt very safe and comfortable throughout the day. It was an awesome experience that everyone should try out!