Watched an idiot in a 150 buzzing yachts at mast height off two tree island in the Thames estuary…phoned up southend airport tower and asked for the flying club telephone number but was given some bullsh@t by the controller. So asked for his license number as I would contact the CAA. Got through to the CFI and presume said idiot got a rollicking.
For those who haven’t flown a seaplane it is extremely difficult to judge height over smooth water surface.
Done my fair share of being a yob but don’t do it where there is a significant chance of getting caught.