I seem to recall one o fthe Norfolk Broads being used for a Floatplane test in one of the comics a few years ago?
I flew Chalks Mallard from Miami-Bimini-Nassau in 1980 (It was the Blue & White one used in the opening sequence of Miami Vice and then sadly crashed a few years ago)
In 1981 I flew Long-Beach to a bit of Pacific off the coast of Catalina Island in an Avalon Mallard where we were met by a rib to take us into the harbour, the swell was up so it was rather interesting transferring to the Rib and then back again for the return!
When my Numbers come up I will be importing an Antilles Goose or restored Mallard for flying between here and my Villa at Como...