If you didn't go, you really didn't miss anything. The whole thing was staggeringly underwhelming. I decided to watch from the Albert Embankment opposite the H of P. Actually, not so much a decision as a necessity, as it was the only point I had a chance to get to, given that I had left it so late to leave home.
By the way, I was wrong about the George Stephenson. Not a converted trawler but something altogether more interesting. Thank you to Joanna Moncrieff for pointing me in the right direction on this one.
Oh, and I should give a special mention to the crew of the rather lovely cruiser Elvin, who seemed delighted to have so many cameras pointed in their direction, even though they were not part of the flotilla!