My folks bought our first beach shack at Phillip Is in 1961.
1969, I was 7 yrs old and like Sparxy, had a purple Wavetight. Loved it!
We also had a beautiful wooden paddleboard!! Hollow, varnished, big boxy rails made by.
We had a matching timber paddle and yes......we used to stand up on it and paddle it SUP style.
My old man also built this classic glass-bottomed board/dinghy that we spearfished from.
Ahhh, those were the days.