A bit off-topic, but have a look at this link;
Catalina returns to make a splash - ABC Mildura - Swan Hill Victoria - Australian Broadcasting Corporation
Dick waxes lyrical, but the footage is interesting.
Only the 1st touch-and-go is shown. Two better ones followed [no skips] and then a landing & takeoff the next day which the ABC didn't film. Private footage may become available later.
The Kiwi's regularly do this in fresh water, but is was a first in Oz for a long time with this type.
G'day