Ouch! Clive...
Sorry to hear about you loosing your kite, but as kiters I guess we all have to know to what point we can rescue ourselves and get out of certain situations... Likewise, I learnt the hardway about taking my 10m kite out in strong gusty winds... I didn't loose it, but one of the other kiters came and brought the kite in for me because it was too strong- I was just beginning and really wanted to get out-luckily I was only about 100m from the sand, otherwise I would haev had to let it go also...
I really hope you can get it back... otherwise, maybe you could contact someone on 'Garden Island' if it isn't a no-mans land island... Not a local....
All the best with your searching...
Elizabeth - Wello Grommit