The Great Melbourne Paddle never shifted. It is and will always be the first Sunday in December. The event in question was the Mad Paddle which only ever had tentative dates pencilled in at the request of the organizers - who are not part of the SUP VIC committee. We have apologized to John for the confusion, after he was as it turns out, prematurely encouraged to come down for before any details had been released.
Basically we put events on the calendar when they come to our attention. Don't shoot the messenger.
The 2013 Great Melbourne Paddle will be the first Sunday in December.