I took this on Thursday, and I think it beggars belief.Sure, we've been hammering them close in, but to do so requires a bit of stealth.I remain seated, even when casting, and take care with my presentation.So the boaters get a little jealous, and think they can anchor, or even go aground, on the dam wall.Maybe they didn't realise the fish may see a 16ft boat, or hear it as it rolls back and to on the concrete

When these boats left the algae was scoured from the concrete, so you can guess what vibration that sent out.I only saw one catch a fish, but it effectively pushed the fish out for the rest of the day, and i was 100m away.
Even during the practice days for the International we had boats motoring right up to us, they were so keen to catch.One boat even told us the bank should be closed for the competition!
I fish both bank and boat, and when in a boat take pains to respect the bank fisher- after all there's plenty of water to go at.I have reported the worse offenders, but never hear the outcome. I believe they should issue warnings, and in the case of International competitors, suspend them from the match.