With so many excellent Great Barrier Reef tour operators we can assure you that you will have a mind blowing experience and we encourage you to get wet. (portdouglasdirectory.com)
Some Great Barrier Reef tour boats have an open deck policy so you can dive for as long as you want and even during meal times. (Dive-The-World.com)
Very helpful and great to get all the vouchers for use at local restaurants and cafes, plus great deals on reef tours etc... (cairnsaccommodation.com)