Johnny 5, I can confirm that Duncan Bar is a nice spot; I was out there this Monday morn, scouting the place out. Loooong stretch of beach with easy access and witnessed one of the oldtimers pull in a nice fat pink. You can park right beside the bar and thereby keep tabs on your vehicle (if you're new to the area, don't find out the hard way that there's a huge 'theft from auto' problem in the Lower Mainland). But as others have stated, there's miles and miles of good stretches of the Fraser that are easily accessible by car and even transit.
To get a good idea and an overview of the territory, try Google Earth; it's a free download that has real satellite photos of the whole planet. Zoom in on the Fraser and you'll get a much better picture of what streets lead directly to shore access and which ones dead end at a railyard/private property/industrial area/etc.
With 20 million salmon inbound in the next 3 weeks, it's hard to go wrong, really. Just follow this handy chart:
- drive towards Fraser, stop before truck tires spin in mud
-tie line to sharp thing
-throw sharp thing away from face then pull it back in
-is sharp thing wet? ok, then throw it back same direction
-sharp thing has glass on it and alarm is ringing? turn 180 degrees, throw sharp thing again. Practice following sentence, "Your window is broken? Ask those guys in the nice jackets over there, I think I saw them do it. The ones with 'DFO' written on the lapel, yes, those ones."