I think I met you on the beach that day Flysurfer. I was there on the Island with the 14 Vegas, 17 Fuel and blonde wife.
When I got back from the island that day I got a session in on the skimboard and 14 back at the mainland. It peaked at about 9.5 knots in an unexpected arvo seabreeze In retrospect, I should have launched with the 14 and skimmer at the north point of the island. I agree with you that the resort should be flattened - overpriced and underdelivers on everything. Having said that, there's nothing but green arrows nearly all the time.
www.seabreeze.com.au/graphs/qld2.asp A day trip is the way to go. Yesterday's graph was 20kts + from 4am-midnight.
I feel really sorry for you, having limited time up here and not coming across any wind. I had the same experience in Byron Bay, The Gold Coast, Thailand, Broome and Holland. Unfortunately it's the nature of the sport.
I found this link which may be helpful to anyone else looking to plan a kiting holiday. This particular link is for the Cairns area, but you can find the stats on plenty of places world wide on this site as well.
www.windfinder.com/windstatistics/cairns_airport?utm_source=www.windfinder.com&utm_medium=web&utm_campaign=redirect