Here are some old pics I found when transferring some slides.....
Location Goolwa Beach, South Australia.
From this meet up the Adelaide Land Yacht Club was formed.
The Yachts are 'FreeFlight' a copy of the American 'Manta' yacht, the 2 other yachts in the pictures are SA11 Bill Finch's yacht and the 'Jolly Green Giant' in its small form (Over the years it grew both in length and width)