I know that it is still being organized for this year, but here is what we did last year:
Friday - Kick-off and dinner at Richmond YC
Saturday - Start
Sunday afternoon - BBQ at Antioch Marina
Monday - Fun at Boyd's Harbor and Dinner
Friday Evening - BBQ hosted by Stockton YC
and a whole bunch of fun in between. You can participate in all the planned get togethers or as few as you want, but we enjoyed all of them and it was great to meet folks and hang out. Between the Monday and Friday event, we found a nice spot for R&R&R and we just stayed there until picking up the anchor and heading for Stockton.
One note, last year we needed to head home on the Saturday after the final event at the Stockton YC. It was a real bash back and we ended up putting into Vallejo for the night. We left Stockton at 6AM and pulled into Vallejo at 4:30PM. That worked out great for us because we took Saturday afternoon to get the boat cleaned up, dinghy rolled up, and our things packed. Then on Sunday we had a very pleasant sail back home. If you are in the same position this year, I suggest you reserve a slip at Vallejo/Bencia/Pittsburg/Antioch for that Saturday night.