I made the run last year. Had a blast. It's a small run, 30-40 boats, for a good cause. Last year's course run North on the St. Johns passed downtown Jacksonville and then back south again. Starts and ends at the Gun and Tackle club on Goody's creek. It will keep you busy all day.
I believe the Donzi guys are coming to town for this run as well. May see a lot of classics running around.