Tom,

Probably one of Australias best intructors is in Brisbane, Queensland. Mike
Job at Southern Cross Yachting is the only person in Australia I believe who
can offer both AYF and RYA certification and has a great school with good
boats. Whitsundays is pretty hyped up but is so full of charterers that it
can be disappointing to sail around. Have a look at
http://www.southerncrossyachting.com.au

for more info. I have done some courses with Mike and it is great value for
money.

regards,

Andrew