Some years ago I was sailing across Breydon with the intention of hitting the change at the Yacht Station. The mudflats were still covered as we set off. Coming the other way was a convoy of cruisers, suddenly the lead cruiser veered left, heading for the South shore and the rest blindly followed and continued following as one by one they all ran aground. Clearly they thought that we had got it wrong, despite the fact that we were sailing rather than aground, the tail enders were waving frantically to us, enthusiastically indicating that we should follow them. We always have binoculars handy when we cross Breydon, so much to see, this time it looked like a large school group. School teachers aren't idiots, are they? Presumably they thought that they were turning into the Waveney. Even intelligent people can get it wrong