Blynman Canal ent., Gloucester Harbor Currents

Currents 2.0 mi Gloucester Harbor entrance 4.1 mi Annisquam Harbor Light 8.0 mi Little Misery Island 8.8 mi Plum Island Sound entrance 10.0 mi Haste Shoal 10.6 mi Marblehead Channel 11.6 mi Fort Pickering, 0.2nm south of Tides 0.7 mi Gloucester Harbor 3.1 mi Annisquam, Lobster Cove 4.5 mi Rockport Harbor 5.5 mi Essex, Essex River 9.1 mi Plum Island Sound (South End) 11.9 mi Beverly Harbor, Beverly 12.0 mi Salem, Salem Harbor