Christmas day sails are a tradition I'd like to see revived. I've had a couple in the last few years and its always a joy to windsurf on this day. Much better than watching some rerun movie while eating chocolates.
This Christmas, if the wind is up a bit I'll aim to windsurf at South West Rocks. If its really blowing I might head for some flat water, perhaps at Stuarts Point.
Here is a video of windsurfing on Christmas Day I took in 2010. It was a great day.