Drove by yesterday and I think it's really called Crescent BEACH rather than BAY. There are some pictures taken from one of the Crescent Beach parking lots in my Orcas Island photo set on Picasa if you want to check it out:
http://picasaweb.google.com/rkinner/OrcasIsland#I made the set for my wife to show to her former coworkers to give them an idea where we now live. (We just moved her in July after she retired.)
I'm afraid I'm no fisherman so can't tell you what's out there.
Email me directly when you are coming out (Click on my name and you will see my email address.) and you can come up for coffee or to enjoy the sunset from 1200 feet elevation.
Ron