When we had a boat, we used to fish out in the inlet after dumping our crab traps out to soak for a few hours. Fish I have caught in the Belcarra area from boat include: flounder and sole (starry flounder, English sole, Rock sole, Sand sole, Flathead sole, speckled sanddab), whitespotted greenling, staghorn sculpin and perch. As for baits, we used sand/piling worms gathered from shore at low tide or shrimp which are fished near the bottom and slowly jigged (either when the boat was anchored or adrift). The fish there are mostly on the small side- 10-12" is average for flatfish down there (except for the sanddabs which don't get much bigger than 6") although I have recently caught starry flounder from shore up to 19" and weighing close to 3 lbs. In the summer during an incoming tide, the shallow areas just south of the fishing/crabbing pier seemed to be most productive for both greenling and flatfish as there is an eelgrass bed located just off the beach. Unfortunately you will also have to contend with plenty of sculpin as well.