RE:Black's Creek 5/27 p.m.
Black's Creek is the drainage point of the pond at the far end of Quincy Shore Drive. Heading from the Boston end, the bay is on your left and the pond will be on your right at the very end of the beach.
There is a sand bar that extends out into the bay from the pond's outflow. On one side the sand bar drops off into a narrow channel that carries the bulk of the outgoing tide. I'd fish it 1-1 1/12 hours after high tide, especially when it corresponds with dawn or dusk.
If you don't have your waders handy you can fish at the small bridge that the creek flows under. The bridge area is more easily fished with spinning gear.