Classic Australian Wooden Power Boat Association

Just refreshing this post with a couple of photos.

Does anyone remember a boat called Catalina?

It used to race at Albert Park, Yarrawonga, Eppalock, etc in the early 60's and was owned and driven by Leslie Austin.

Well before my time Greg but I did remember that I had a photo somewhere. It looks to be similar if not the same place as yours above. I don't have any details on it other than I found his pic at the Paynesville Maritime Museum.
The second pic is a maybe.