A short account here at NPR about King George I and his barge trip on the Thames for which Handel wrote his Water Music. (It's the 300th anniversary of the outing, hence the article.)
It's a wonder it hasn't been recreated for some movie or other. Or has it?
[Instead of showmanship in front of the military, why doesn't Malcolm Turnbull try a similar exercise on Lake Burley Griffin? He's got the spare change to pay a composer, too.]