What about this: Tall Ship Festival in Williamstown from 6-15 September. I went there 3 years ago in the early morning and got some stunning shots before the tourists arrived. Here is the web site: http://www.melbournetallships2013.yachting.org.au/. I will be there anyway every day. Best would be to catch the tall ships arriving in the port or departing from the port, which would suggest meeting on either Friday, 6 September, or Sunday, 15 September. Maybe the 15th suits all of you voting for the first or second half of September, respectively. Don't forget your wide angle lens for the tall ships at the pier. I mostly used a 45mm lens for 6x7.