It seems to be the quintessential SF Bay paddle - launch from somewhere in Marin, paddle around Angel Island, play in the tidal current and head back home. I don't know how many times I've done the trip but it always a good one. Like most things it depends on who you're with. Last week I headed down midweek with some friends - one of the benefits of a crappy economy is that folks without jobs can go paddling on a Wednesday. It was a fine fall day and we caught the ebb at both Pt. Stewart and Yellow Bluff. Yellow bluff is the most popular tidal race play spot because it is convenient and the largest but I think Pt. Stewart is a much nicer spot. The video shows both but probably not a fair comparison since we started at Stewart and didn't get to Yellow Bluff until past max ebb and it was dying down. Pictures HERE.