HH Goose. An early WIGE ? since it only flew in ground effect could call it the SanFransico Bay Monster or wherever it was tested.
Recent news shows that great beast the Caspian Sea Monster. one of being saved from a watery grave.
I'd like to see that,!
As for the seaplane service..great idea, but CAsA doesnt like enterpreneurs. Hope it gets up but I would posit red tape, green tape and time will make it very difficilt..if not impossible